Company Filing History:
2 out of 20 
1 out of 2,546 
1 out of 9 Years Active: 1983-1989
Title: **David W. Pershing: Innovator in Emission Reduction Technologies**
Introduction
David W. Pershing is a notable inventor based in Salt Lake City, Utah, with a significant portfolio of patents focused on reducing harmful emissions from combustion processes. With a total of five patents to his name, Pershing's work is particularly relevant in today's context of increasing environmental concerns.
Latest Patents
Among his latest innovations are methods for reducing nitrogen oxides (NO.sub.x) and sulfur oxides (SO.sub.x) emissions from combustion. His first patent details a process to selectively reduce NO.sub.x using cyanuric acid, whereby the compound is decomposed in an oxygen-free environment before being introduced to the effluent stream containing NO.sub.x. This method allows for the reduction of NO.sub.x to very low levels and demonstrates the potential for simultaneous removal of both NO.sub.x and SO.sub.x using additives like limestone and hydrated lime.
In another groundbreaking patent, Pershing explores the use of selective reducing agents, such as ammonium sulfate and urea, in an engineered decomposition process that enhances NO.sub.x reduction. His innovative approaches not only aim to optimize emission reduction techniques but also integrate SO.sub.x control technologies to achieve comprehensive environmental benefits.
Career Highlights
David W. Pershing has made significant contributions to the field of environmental research, particularly through his tenure at Energy and Environmental Research. His pioneering efforts have laid the groundwork for more sustainable industrial practices and have attracted attention from various sectors interested in emission control technologies.
Collaborations
Throughout his career, Pershing has collaborated with notable experts, including Michael P. Heap and Shih L. Chen. These partnerships have enriched his research and expanded the impact of his inventions in the field of environmental engineering.
Conclusion
David W. Pershing's dedication to developing innovative methods for emission reduction has positioned him as an influential figure in environmental technology. His patents not only reflect a commitment to sustainable practices but also pave the way for future advancements in reducing ecological footprints associated with combustion processes. As industries continue to seek cleaner solutions, the importance of Pershing's work will undoubtedly grow.