This inventor holds 2 USPTO granted patents. Top assignee: Air Products and Chemicals, Inc.. Active years: 1994-1999.
Company Filing History:
Years Active: 1994-1999
Title: Innovations of Stephen Ian Clarke
Introduction
Stephen Ian Clarke is an accomplished inventor based in Macungie, PA (US). He has made significant contributions to the field of chemical engineering, particularly in the production and purification of sulfuric acid. With a total of 2 patents, Clarke's work has had a notable impact on industrial processes.
Latest Patents
Clarke's latest patents include a "Weak acid process for producing dinitrotoluene." This invention relates to an improved process for the production of dinitrotoluene, wherein one can effectively employ a feed sulfuric acid, referred to as 'weak acid.' The weak acid concentration, as feed, ranges from 86-91%, preferably 87-89% sulfuric acid by weight, to meet the total sulfuric acid requirements for the facility. This is accomplished by utilizing cocurrent processing in a mononitration zone and countercurrent nitration concerning sulfuric acid in the dinitration zone. Another significant patent is the "Process for purification and concentration of sulfuric acid." This process focuses on the purification and concentration of sulfuric acid contained with nitric acid by-products and organic components pursuant to the mixed acid nitration of aromatics. The process integrates a purification system with a concentration system.
Career Highlights
Stephen Ian Clarke is currently associated with Air Products and Chemicals, Inc., where he continues to innovate and develop new processes. His expertise in chemical processes has made him a valuable asset to the company.
Collaborations
Clarke has collaborated with notable coworkers, including William Joseph Mazzafro and Mark Shedric Simpson. Their combined efforts have contributed to advancements in chemical engineering and industrial applications.
Conclusion
Stephen Ian Clarke's contributions to the field of chemical engineering through his patents and collaborations highlight his innovative spirit and dedication to improving industrial processes. His work continues to influence the production and purification of essential chemicals.