Company Filing History:
5 out of 16,083 
1 out of 55 
Years Active: 2006-2017
Title: Innovations of John D Sethian
Introduction
John D Sethian is a notable inventor based in Burke, VA (US). He has made significant contributions to the field of technology, particularly in the area of exhaust gas treatment and aluminum alloy desensitization. With a total of 5 patents to his name, Sethian's work reflects a commitment to advancing engineering solutions.
Latest Patents
One of Sethian's latest patents involves an improved process for removing nitrogen oxides (NOx) from exhaust gases produced by combustion-based energy sources. This innovative method directs catalyst-free exhaust gas into one or more ducts, where it is cooled before passing through a reaction chamber. The gas flow rate and electron beam pulse rate are configured to ensure that each volume of gas is subjected to a single electron beam pulse. This process effectively converts NOx into nitrogen (N) and oxygen (O), allowing for cleaner emissions.
Another significant patent focuses on the desensitization of aluminum alloys using pulsed electron beams. This method exposes a specific location on the surface of an aluminum alloy sample to a controlled pulsed electron beam. The beam heats a shallow layer of the alloy to a temperature that reduces the degree of sensitization, with the extent of reduction being controllable through various parameters.
Career Highlights
Throughout his career, John D Sethian has worked with esteemed organizations, including the United States Navy and The Titan Corporation. His experience in these roles has contributed to his expertise in developing innovative solutions for complex engineering challenges.
Collaborations
Sethian has collaborated with notable individuals in his field, including Matthew C Myers and Frank Hegeler. These partnerships have likely enhanced his research and development efforts, leading to impactful inventions.
Conclusion
John D Sethian's contributions to technology through his patents demonstrate his innovative spirit and dedication to improving industrial processes. His work continues to influence advancements in exhaust gas treatment and material science.