Company Filing History:
15 out of 628 
2 out of 203 
Years Active: 1993-2007
Title: Innovations by Inventor Yuan-Zhang Han
Introduction
Yuan-Zhang Han, based in West Chester, PA, is a prolific inventor known for his remarkable contributions to fuel purification technologies. With a total of 17 patents to his name, Han has demonstrated exceptional expertise in developing methods that enhance the quality and sustainability of fuel streams.
Latest Patents
Among Han's most recent innovations are two significant patents focused on organosulfur oxidation processes. The first, titled "Organosulfur Oxidation Process," outlines a method for purifying fuel streams containing organonitrogen and organosulfur impurities. In this process, the fuel is initially treated to extract organonitrogen impurities, effectively halving the nitrogen content. Following this, the organosulfur impurities undergo oxidation using an organic hydroperoxide alongside a titanium-containing silicon oxide catalyst, resulting in sulfones that can be more easily removed from the fuel stream.
His second significant invention, called "Desulfurization Process," presents another advanced method for purifying fuel streams laden with organosulfur impurities. By oxidizing the fuel stream with an organic hydroperoxide within the presence of an oxidation catalyst, Han's invention forms a sulfone product. This process includes an innovative step where the alcohol by-product from the organic hydroperoxide is eliminated from the oxidized fuel stream. Such removal enhances the efficiency of solid adsorbents used for extracting the sulfone product.
Career Highlights
Throughout his career, Yuan-Zhang Han has made impactful contributions to prestigious companies such as Arco Chemical Technology, L.P. and Lyondell Chemical Technology, L.P. His innovative spirit and technical acumen have played a vital role in advancing fuel technology.
Collaborations
During his career, Han has had the opportunity to collaborate with notable colleagues, including Kevin M. Carroll and Edrick Morales. These partnerships have been essential in driving collaborative innovation and refining complex technologies in the field of fuel purification.
Conclusion
Yuan-Zhang Han's extensive body of work, marked by 17 patents, underscores his significant contributions to the field of fuel purification. His latest patents not only reflect his innovative capabilities but also highlight the potential for advancements in sustainable fuel technologies. As industries strive for cleaner and more efficient fuel solutions, inventions like those by Yuan-Zhang Han will undoubtedly lead the way forward.