Company Filing History:
3 out of 155 
1 out of 1 
1 out of 1 Years Active: 1993-2013
Title: Ariel A. Ewenson: Innovator in Chemical Coupling Agents
Introduction
Ariel A. Ewenson is a notable inventor based in Omer, Illinois. He has made significant contributions to the field of chemical synthesis, particularly in the development of innovative coupling agents. With a total of 5 patents to his name, his work has had a profound impact on peptide and polynucleotide synthesis.
Latest Patents
Ewenson's latest patents include groundbreaking advancements in coupling agents. One of his notable inventions is the "Proton acceptor iminium/carbocation-type coupling agents." This patent describes novel iminium-type coupling agents that contain proton acceptors in their iminium moiety. These agents are particularly beneficial as yield-enhancing and racemization-suppressing coupling agents in peptide syntheses. The patent also outlines a process for preparing these iminium-type coupling agents and their applications in the synthesis of polypeptides and polynucleotides.
Another significant patent is the "Benzotriazole-1-yl-N-oxy phosphonium coupling agent." This invention details novel phosphonium salts of benzotriazoles, which are highly reactive coupling agents. These agents are especially useful in peptide synthesis, and the patent includes a process for preparing these phosphonium salts along with methods for utilizing them in peptide preparation.
Career Highlights
Throughout his career, Ariel A. Ewenson has worked with several companies, including Bromine Compounds Limited and Luxembourg Industries Ltd. His experience in these organizations has contributed to his expertise in chemical synthesis and innovation.
Collaborations
Ewenson has collaborated with notable individuals in his field, including Bertha Croitoru and Yoav Luxembourg. These collaborations have likely enriched his research and development efforts.
Conclusion
Ariel A. Ewenson stands out as an influential inventor in the realm of chemical coupling agents. His innovative patents and contributions to peptide synthesis continue to shape the landscape of chemical research and development.