Journal Publications:
“The Next Step Change in Process Safety” Chemical Engineering, 121, (10), pp. 53-58, October 2014.
“Safety control, alarms, and interlocks as IPLs,” Process Safety Progress, 33 (2), pp 186-194, June 2014.
Author’s Response to the letter to the editor, Process Safety Progress, 31(4), pp. 239, December 2012.
“Consistent consequence severity estimation,” Process Safety Progress, 31(1), pp. 9–16, March 2012.
“Risk criteria, protection layers, and conditional modifiers,” Process Safety Progress, 31(2), pp. 139–144, June 2012.
“Centralized or distributed process safety,” Intech, November 2011.
“Don’t Fall for Safety System Myths,” Chemical Processing, November 2011.
“Improving PHA/LOPA by consistent consequence severity estimation,” Journal of Loss Prevention in the Process Industries, 24 (6), pp. 879-885, November 2011.
“Overfill protective systems – Complex problem, simple solution,” Journal of Loss Prevention in the Process Industries, 23 (6), pp 781-783, November 2010.
“Don’t Underestimate Overfilling’s Risk” Chemical Processing, pp 30-33, August 2010.
“Safety Management is a Virtue” Process Safety Progress, 28 (3) pp. 210-13, September 2009.
“What is a Safety Instrumented System” Process Safety Beacon, July 2009.
“Safe Automation Through Process Engineering,” Chemical Engineering Progress, 104, (12) pp. 41-47, December 2008.
“Quality Assurance in Safe Automation” Process Safety Progress, 27(4), pp. 323-327, December 2008.
“Cookbook versus Performance SIS Practices,” Process Safety Progress, 27(3), pp. 260-264, September 2008.
“Keep Operations Safe,” Chemical Processing, pp. 32-36, August 2008.
“IEC 61508 Product Approvals–Veering Off Course,” ControlGlobal.com, http://www.controlglobal.com/articles/2008/187.html, July 2008.
Alternative Approach to Wellhead Flowline-Pressure Protection, Journal of Petroleum Technology, pp. 69-70, February 2008.
“Conversation with a Guru of Safety Systems,” Automation World, p. 54, November 2007.
“Achieve Continuous Safety Improvement,” Chemical Processing, pp. 33-37, April 2007.
“The Evolution of Plant Automation, Control Global, pp. 53-55. February 2007.
“Random, Systematic, and Common Cause Failure: How do you manage them?” Process Safety Progress, 25(4), pp. 331-338, December 2006.
“SIS Expert Answers 5 Key User Questions,” Flow Control, XII(11), pp. 14-16, November 2006.
“Meet SIS ‘User Approval’ Mandates,” Chemical Processing, pp. 44-46, May 2006.
“IEC 61511 and the Capital Project Process – A protective management system approach,” Journal of Hazardous Materials, 130 (2006).
“Can You Safely ‘Grandfather’ Your SIS,” Chemical Processing, pp. 42-44, August 2005.
“The Grandfather Clause is Not a Fat Man in a Red Suit,” Global Control, pp. 68-70, August 2005.
“Bhopal: Could it Happen Again?” Hydrocarbon Processing, Guest Editorial, March 2005.
“Perspective on ANSI/ISA 84.00.01-2004 (IEC 61511): An Emerging International Consensus Standard,” Hydrocarbon Processing, June 2004.
“Consider HIPS for Reactive Processes,” Chemical Processing, pp. 33-37, March 2004.
“Safety Standards Harmonize: Comparing European and U.S. Safety Standards,” Intech, p. 21, January 2004.
“Introduction to Layers of Protection Analysis,” Journal of Hazardous Materials, 104 (2003).
“Partial Stroke Testing A Cost-Effective Alternative,” InTech, p. 54, February 2003.
“Improve Facility SIS Performance and Reliability,” Hydrocarbon Processing, pp. 71-74, October 2002.
“Software Implemented Safety Logic,” Process Safety Progress, 21(2), pp. 161-163, June 2002.
“Bridging the Safe Automation Gap Part 2,” Hydrocarbon Processing, pp. 57-60, May 2002.
“Bridging the Safe Automation Gap Part 1,” Hydrocarbon Processing, pp. 85-87, April 2002.
“A Real Danger to the HPI-Congress,” Hydrocarbon Processing, March 2002.
“The Real Danger,” editorial, Houston Chronicle, January 13, 2002.
“Fault Management Analysis,” Process Safety Progress, 20(3), pp. 204-207, November 2001.
“Setting the Standard for Safety Instrumented Systems,” Chemical Engineering, 107(13), pp. 92-94, December 2000.
“Partial Stroke Testing of Valves,” Control Engineering, pp. 87- 89, November 2000.
“Using Instrumented Systems for Overpressure Protection,” Chemical Engineering Progress, pp. 65-68, November 2000.
“Path to S84 Compliance,” Guest Editorial, Factory Mutual Newsletter, July 2000.
“Safety Requirements Specifications in a Capital Project Environment,” Control Engineering, May 2000.
“Viewpoints on ISA TR84.0.02-simplified methods and fault tree analysis,” ISA Transactions, 2000.
“Why use safety integrity levels?” Intech, p. 74, March 2000.
“Understanding Safety Integrity Levels,” Control Engineering website, February 2000.
“The next generation for overpressure scenarios,” Intech, pp. 65-66, January 2000.
“Managing Risk Improves Production,” Control Engineering, p. 30, December 1999. December 1999 website contains full publication.
“Safety Can Go Wrong Fast,” Intech, pp. 40-42, November 1999.
“Safeguard Safety Instrumented Systems,” Chemical Engineering Progress, 95(11) pp. 85-90, November 1999.
“Common Cause and Common Sense, Designing Failure Out of Your Safety Instrumented Systems (SIS),” ISA Transactions, 38, pp. 291-299, 1999.
“Draft IEC 61508 Target Safety Integrity Level,” Australian Journal of Instrumentation and Control, pp. 9-13, July 1999.
“Is Your SIS ‘Grandfathered’?,” Chemical Engineering Progress, pp. 39-42, May 1999.
“Are Your Instrumented Safety Systems Up to Standard?,” Chemical Engineering Progress, pp. 55-58, November 1998.
“Techniques for Assigning A Target Safety integrity Level,” ISA Transactions, 37, pp. 95-104, 1998.
Conference Presentations:
Risk Assessment Challenges 20:20, 10th Global Congress on Process Safety, New Orleans, LA, March 30 – April 2, 2014, accepted.
Safety controls, Alarms, and Interlocks as IPLs, 2013 Mary Kay O’Connor Process Safety Center International Symposium, College Station, TX, Oct 22 – 24, 2013.
Lifecycle Keeps Turning, PDS Forum, Trondheim, Norway, Oct 15 – 16, 2013.
Risk Assessment Challenges 20:20, 2013 AICHE Southwest Process Technology Conference, Galveston, TX, October 3 – 4, 2013.
Safety controls, Alarms, and Interlocks as IPLs, 9th Global Congress on Process Safety, San Antonio, TX, April 28 – May 1, 2013.
Don’t Fall for Safety Instrumented System Myths, 68th Annual Instrumentation Symposium for the Process Industries, College Station, TX, Jan 22 – 24, 2013.
“Working Under Pressure (How do you manage pressure hazards?)” 2012 Mary Kay O’Connor Process Safety Center Symposium, College Station, TX, Oct 23 – 25, 2012.
“Instrument Reliability Network – The Who, What, Where, and Why,” 2012 Mary Kay O’Connor Process Safety Center Symposium, College Station, TX, Oct 23 – 25, 2012.
“Working Under Pressure,” 8th Global Congress on Process Safety, Houston, TX, April 1 – 5, 2012.
“Working Under Pressure,” 25th Annual Environmental, Health & Safety Seminar, TX, June 4-7, 2012.
“Distributed Safety Instrumented Systems,” Instrumentation Symposium for the Process Industries, College Station, TX, January 24-26, 2012.
“What’s an ISF,” Instrumentation Symposium for the Process Industries, College Station, TX, January 24-26, 2012.
Implementing Instrument and Process Control Mechanical Integrity and Reliability Improvement, 2011 Mary Kay O’Connor Process Safety Center International Symposium, College Station, TX, Oct 25 – 27, 2011.
Risk Criteria, Protection Layers, and Conditional Modifiers, 2011 Mary Kay O’Connor Process Safety Center Symposium, College Station, TX, Oct 25 – 27 2011.
Mechanical Integrity and SIS panel, 2011 ISA Automation Week, Mobile, Alabama, October 17-10, 2011.
Introduction to Process Safety Principles, AIChE Regional 2011 Process Technology Conference, Young Professional (YP) Session, Galveston, TX, October 6-7, 2011.
What’s up with Safety Instrumented Systems, 2011 Cheminnovations, ISA, Houston, TX, September 13-15, 2011.
Mechanical Integrity for Instrumentation and Controls, 3rd CCPS Latin American Process Safety Conference and Expo, Poster Session, Buenos Aires, Argentina, August 8-10, 2011.
A Process Engineering View of Safe Automation, 3rd CCPS Latin American Process Safety Conference and Expo, Poster Presentation Session, Buenos Aires, Argentina, August 8-10, 2011.
Risk Criteria, Protection Layers, and Conditional Modifiers, 3rd CCPS Latin American Process Safety Conference and Expo, Poster Session, Buenos Aires, Argentina, August 8-10, 2011.
Partial Stroke Testing Workshop and Panel, 2011 Valve World, Houston, TX, June 21-22, 2011.
Loss Prevention – Learning from the Chemical Industry, The Energy Summit, Houston, TX, May 11-12, 2011.
Risk Criteria, Protection Layers and Conditional Modifiers, AIChE 2011 Spring Meeting, 7th Global Congress on Process Safety, March 13-16, 2011.
Update on ISA Standards, Instrumentation Symposium, College Station, TX Jan 25-27, 2011
What’s Up with SIS? Workshop, 2010 ISA Automation Week, Houston, TX, October 5-7, 2010.
Process Engineering View of Safe Automation, 2010 SACHE Faculty Workshop, AIChE, August 2010.
Consistent Consequence Severity Estimation, Texas Chemistry Council/Association of Chemical Industry of Texas 2010 EHS Seminar, Galveston, TX, June 7-10, 2010.
Consistent Consequence Severity Estimation, 2010 Mary Kay O’Connor Process Safety Center Symposium, College Station, TX, Oct 26-27 2010.
Consistent Consequence Severity Estimation, AIChE 6th Global Congress on Process Safety, San Antonio, TX, March 21-25, 2010.
Experience Gained During Proof Test Data Collection, AIChE 6th Global Congress on Process Safety Poster Session, San Antonio, TX, March 21-25, 2010.
Overfill Protection Systems – Complex Analysis, Simple Solution, 65th Annual Instrumentation Symposium, Texas A&M University, College Station, TX, January 26-28, 2010.
SIF Proof Testing To Yield Reliability Data, A.D. Arnold, Angela Summers Ph D, P.E., William Hearn P.E., 2009 Technical Conference, Houston, TX, October 6-8, 2009.
Update On ISA84 Committee Activities, 2009 Technical Conference, Houston, TX, October 6-8, 2009.
Safety Management is a Virtue, Poster Session, 2009 AIChE Global Conference, Tampa, Fl, April 26-29, 2009.
Lessons Learned in Auditing Automated Systems for PSM Compliance, 2009 AIChE Global Conference, Tampa, Fl, April 26-29, 2009.
Overfill Protection Systems – Complex Analysis, Simple Solution, 2009 AIChE Global Conference, Tampa, Fl, April 26-29, 2009.
Lessons Learned in Auditing Automated Systems for PSM Compliance, 64th Annual Instrumentation Symposium, Texas A&M University, College Station, TX, January 27-29, 2009.
Lessons Learned in Auditing Automated Systems for PSM Compliance, 1st Latin America CCPS Conference, featured speaker, Buenos Aires, May 27-29, 2008.
Quality Assurance in the Management of Instrumented Safety Systems, 1st Latin America CCPS Conference, featured speaker, Buenos Aires, May 27-29, 2008.
Quality Assurance in the Management of Instrumented Safety Systems, American Institute of Chemical Engineers, Process Plant Safety Symposium, 2008 Spring National Meeting, New Orleans, LA, April 6-10, 2008.
“Continuous Improvement and Existing Safety Systems,” 10th Annual Symposium, Mary Kay O’Conner Process Safety Center Symposium, Texas A&M University, October 24-25, 2007.
“Continuous Improvement in SIS,” Texas Chemical Council, 2007 Annual Meeting, Galveston TX, June 4-7, 2007.
“An Alternative Approach to Wellhead Flowline Pressure Protection,” Dr. Angela E. Summers, Ph.D., P.E., and Bryan Zachary, 2007 Offshore Technology Conference, Houston, TX (2007).
“Continuous Improvement in SIS,” American Institute of Chemical Engineers, Process Plant Safety Symposium, 2007 Spring National Meeting, Houston, TX, April 23-26, 2007.
“Update on the SIS Standards,” Texas A&M University, 2007 Instrumentation Symposium, College Station, TX (2007).
“The Evolution of the Cookbook,” 9th Annual Symposium, Mary Kay O’Connor Process Safety Center “Beyond Regulatory Compliance: Making Safety Second Nature,” Texas A&M University, College Station, Texas, October 23-24, 2006.
“To HIPS or Not to HIPS,” and “Grandfather Clause Panel,” ISA Safety Symposium, 2006, Research Triangle Park, NC: Instrumentation, Systems, and Automation Society, Houston, Texas October 16-19, 2006.
“User Approval of SIS Device,” Angela Summers and Susan Wiley, PhD, PE, American Institute of Chemical Engineers, 2006 Spring National Meeting, Orlando, Florida, April 26-27, 2006.
“Failure Conundrum,” Michela Gentile, PhD. and Angela Summers, PhD, PE, American Institute of Chemical Engineers 2006 Spring National Meeting, Orlando, Florida, April 26-27, 2006.
“High Integrity Protective Systems Workshop,” 2006 Instrumentation Symposium, Texas A&M University, College Station, Texas, January 24-26, 2006.
“Failure Conundrum,” Michela Gentile, PhD and Angela Summers, PhD, PE, 8th Annual Symposium, Mary Kay O’Connor Process Safety Center “Beyond Regulatory Compliance: Making Safety Second Nature,” Texas A&M University, College Station, Texas, October 24-27, 2005.
“TR84.00.02 Maintenance Panel,” ISA EXPO 2005, Research Triangle Park, NC: Instrumentation, Systems, and Automation Society, Chicago, Illinois, October 24-27, 2005
“Are Your SIS ‘Grandfathered’ Under ANSI/ISA 84.00.01-2004,” 2005 Emerson Global Users Exchange, Orlando, Florida, October 3-7, 2005.
“Operator Initiated Action as an Independent Protection Layer,” Angela Summers and Scott Sandler, American Institute of Chemical Engineers 2005 Spring National Meeting Process Plant Safety Symposium, Atlanta, Georgia, April 11-13, 2005.
“IEC 61511 and the Capital Project Process – A Protective Management Systems Approach” and “The Challenges of Safety Instrumented System Software Performance,” Bhopal Gas Tragedy and It’s Effects on Process Safety, I.I.T. Kanpur, Bhopal, India, December 1-3, 2004.
“IEC 61511 and the Capital Project Process – A Protective Management Systems Approach,” 7th Annual Symposium, Mary Kay O’Connor Process Safety Center “Beyond Regulatory Compliance: Making Safety Second Nature,” Texas A&M University, College Station, Texas October 26 & 27, 2004.
“High Integrity Protection Systems for New and Existing Vessels,” International Mechanical Engineering Conference, American Society of Mechanical Engineers, La Jolla, California, June 2004.
“IEC 61511 Management System Workshop,” 2004 Instrumentation Symposium, Texas A&M University, College Station, Texas, January 20-22, 2004.
“Risk Management for Reactive Processes,” Mary Kay O’Connor Process Safety Symposium 2003, Texas A&M University, College Station, Texas, October 28-30, 2003.
“Introduction to Layers of Protection Analysis,” Angela Summers and Scott Sandler, ISA EXPO 2003, Research Triangle Park, NC: Instrumentation, Systems, and Automation Society, Houston, Texas, October 20-23, 2003.
“Flare Reduction with High Integrity Protection Systems (HIPS),” ISA EXPO 2003, Research Triangle Park, NC: Instrumentation, Systems, and Automation Society, Houston, Texas, October 20-23, 2003.
“High Integrity Protective Systems for Reactive Processes,” Center for Chemical Safety Symposium, New York: American Institute of Chemical Engineers, Scottsdale, Arizona, September 23-25, 2003.
“Differences Between IEC 61511 and ISA 84.01-1996” and “Flare Reduction with High Integrity Protection Systems (HIPS),” ISA Technical Symposium 2003, Research Triangle Park, NC: Instrumentation, Systems, and Automation Society, Houston, Texas, March 19-20, 2003.
“Differences Between IEC 61511 and ISA 84.01-1996,” 2003 Instrumentation Symposium, Texas A&M University, College Station, Texas, January 21-23, 2003.
“Introduction to Layers of Protection Analysis,” Mary Kay O’Conner Process Safety Center Symposium, Texas A&M University, College Station, Texas, October 2002.
“What Every Manager Should Know About the New SIS Standards,” ISA EXPO 2002, Research Triangle Park, NC: Instrumentation, Systems, and Automation Society, Chicago, IL (2002).
“Partial Stroke Testing and SIF Performance” ISA Technical Symposium 2002, Research Triangle Park, NC: Instrumentation, Systems, and Automation Society, Baltimore, Maryland.
“What Every Manager Should Know About the New SIS Standards,” ISA Technical Symposium 2002, Research Triangle Park, NC: Instrumentation, Systems, and Automation Society, Baltimore, Maryland.
“Bridging the Safe Automation Gap Part 2,” 2002 Instrumentation Symposium, Texas A&M University, College Station, Texas, January 2002.
“Bridging the Safe Automation Gap Part 1,” Mary Kay O’Conner Process Safety Center, Texas A&M University, College Station, Texas, October 2001.
“Partial Stroke Testing of Block Valves,” ISA EXPO 2001, Houston, Texas, September 2001.
“Software-Implemented Safety Logic,” Loss Prevention Symposium, American Institute of Chemical Engineers, Houston, Texas, April 2001.
“Fault Management Analysis,” Loss Prevention Symposium, American Institute of Chemical Engineers, Houston, Texas, April 2001.
“Extrinsic Safety Systems,” Mary Kay O’Conner Process Safety Center Symposium, Texas A&M University, College Station, Texas, October 2000.
“Using Instrumented Systems for Overpresssure Protection,” Loss Prevention Symposium, American Institute of Chemical Engineers, Atlanta, Georgia, March 2000.
“S84 and related safety system standards” and “SIL Assignment methodologies,” CCPS Steering Committee, Tampa, Florida, February 2000.
“Safety Requirements Specifications in a Capital Project Environment,” Texas A&M Instrumentation Symposium, College Station, Texas, January 2000.
“High Integrity Protection Systems and Pressure Relief Valves,” International Mechanical Engineering Congress, American Society of Mechanical Engineers, Nashville, Tennessee, November 1999.
“Selecting the Best Solenoid Architecture for Your Application,” Process Plant Reliability Symposium, Houston, Texas, October 1999.
“Regulations, Standards, and Safety Instrumented Systems,” Mary Kay O’Conner Process Safety Center, Texas A&M University, College Station, Texas, October 1999.
“Simplified Methods and Fault Tree Analysis of Safety Instrumented Systems,” Interkama, Dusseldorf, Germany, October 1999.
“The Treatment of Existing Systems Under ANSI/ISA 84.01-1996,” ISA Tech99, ISA, Philadelphia, Pennsylvania, October 1999.
“Solenoid Configurations: Selecting the Best Architecture for Your Application,” ISA Tech99, ISA, Philadelphia, Pennsylvania, October 1999.
“Workshop: Safety Instrumented Systems Under the New Standards,” ICEX 99, Institute of Instrumentation and Control, Melbourne, Australia, May 1999.
“Draft 61508 Target Safety Integrity Levels,” ICEX 99, Institute of Instrumentation and Control, Melbourne, Australia, May 1999.
“Common Cause Failures and SIS Design,” 1999 Australian Triconex Users Group, Melbourne, Australia, May 1999.
“Testing and Bypassing,” Panel moderator, 1999 Cincinnati Automation Expo, Covington, Kentucky, March 1999.
“Estimation and Evaluation of Common Cause Failures,” 1999 Loss Prevention Symposium, American Institute of Chemical Engineers Spring Meeting, Houston, Texas, March 1999.
“Is Your SIS ‘Grandfathered’ Under ANSI/ISA 84.01-1996?,” Process Plant Safety Symposium, Houston, Texas, October 1998.
“Y2K and Its Impact on the Process Industry,” Process Plant Safety Symposium, Houston, Texas, October 1998.
“Common Cause and Common Sense Designing Failure Out of Your SIS,” ISA EXPO 1998, Houston, Texas, October 1998.
“Regulations, Standards, and Safety Instrumented Systems,” Plenary Speaker, ISA EXPO 1998, Houston, TX, October 1998.
“Introduction to the Quantitative Techniques Proposed by ISA TR84.0.02 for Verification of the Target SIL,” Center for Chemical Process Safety, September 1998.
“Maintaining A Diverse, Creative Engineering Workforce,“ Society of Women Engineers, Houston, Texas, June 1998.
“Regulations, Standards, and Safety Instrumented Systems,” Keynote Speech at European Triconex Users Group, Venice, Italy, May 1998.
“Assigning Safety Integrity Levels,” TAMU Instrumentation Symposium, Texas A&M University, January 1998.
“Introduction to the Quantitative Techniques Proposed by ISA TR84.0.02 for Verification of the Target SIL,” TAMU Instrumentation Symposium, Texas A&M University, Jan. 1998.
“Target SIL Assignment,” Panel Presentation, ISA Tech 1997, Anaheim, CA, October 1997.
“ISA TR84.0.02 Part 3: Fault Tree Analysis,” Panel Presentation, ISA Tech 97, Anaheim, CA, October 1997.
“Testing and By-Passing Safety Instrumented Systems,” Panel Presentation, ISA Tech 1997, Anaheim, CA, October 1997.
“ANSI/ISA 84.01,” Local ISA Section Meetings, 1996-1997.
“SIL Assignment,” Local ISA Section Meetings, 1996-1997.
“Achieving Six Sigma Through Fault Tree Analysis,” Process Plant Reliability Symposium, Houston, TX, October 1997.
“Use of Quantitative Risk Assessment to Increase Reliability of Turbomachinery Emergency Shutdown Systems,” Process Plant Reliability Symposium, Houston, TX October 1996.
Book Publications:
Chapter, Safety Instrumented Systems, Kirk-Othmer Encyclopedia of Chemical Technology, 2009.
Book, Guidelines for Safe and Reliable Instrumented Protective Systems for Chemical Processes, Center for Chemical Process Safety, American Institute of Chemical Engineers, 2007.
Chapter, Safety Instrumented Systems, Perry’s Handbook of Chemical Engineering, 2007.
Chapter, “Partial Stroke Testing of Block Valves,” Instrument Engineers Handbook, Volume 4, Chapter 6.9, 2006.
Chapter 13, “Control Systems,” Lee’s Loss Prevention in the Process Industries, 3rd Edition 2005 and 4th edition 2012, both edited by Sam Mannan.
Chapter, “High Integrity Pressure Protection Systems (HIPPS)”, Instrument Engineers Handbook, Volume 3, Chapter 2.6, 2003.
Patents:
- Apparatus and Method for On-Line Detecting of Leaky Valve Seals and Defective Flow Diverters, Patent No. 7,107,822 B2, September 19, 2006, Angela Summers and Bryan Zachary
- Method of Testing a Variable Function Voting Solenoid-Operated Valve Apparatus, Patent No. 6,862,914 B1, March 8, 2005, Angela Summers and Bryan Zachary
- Dual Sensor Process Temperature Switch having a High Diagnostic One-Out-of-Two Voting Architecture, Patent No.6,965,840 B2, November 15, 2005.
- Apparatus and Method for On-Line Detection of Leaky Valves and Defective Flow Diverters, Patent No. 6,820,465 B2, November 23, 2004, Angela Summers and Bryan Zachary
- Variable Function Voting Solenoid-Operated Valve Apparatus and Testing Method Therefor, Patent No. 6,722,383 B2, April 20, 2004, Angela Summers and Bryan Zachary
- Dual Sensor Process Pressure Switch Having a High-Diagnostic One-Out-of-Two Voting Architecture, Patent No. 6,704,682 B2, March 9, 2004, Angela Summers and Bryan Zachary
- Apparatus and Method for On-Line Detection of Leak Valves, Patent No. 6,550,314 B2, April 22, 2003, Angela Summers and Bryan Zachary
- Two Out of Three Voting Solenoid Arrangement, Patent No. 6,435,202, August 20, 2002, Bryan Zachary and Angela Summers
- Two Out of Three Voting Solenoid Arrangement, Patent No. 6,155,282, December 5, 2000, Bryan Zachary and Angela Summers
Academics:
- Dissertation committee, Hui Jin, A contribution to reliability assessment of safety-instrumented systems, Norwegian University of Science and Technology, Trondheim, Norway, 2013.
- Dissertation committee, Mary Ann Lundteigen, Safety Instrumented Systems in the Oil and Gas Industry: Concepts and methods for safety and reliability assessments in design and operation, Norwegian University of Science and Technology, Trondheim, Norway, 2009.
- Dissertation committee, P.D. Fick, Control Systems Trip Management in the Chemical Industry, North-West University, Potchefstroom, South Africa, 2008.