Company Filing History:
Years Active: 1976-2004
Title: Edward J Hessler: Innovator in Steroid Chemistry
Introduction
Edward J Hessler is a notable inventor based in Kalamazoo, MI (US), recognized for his contributions to the field of steroid chemistry. He holds a total of 12 patents, showcasing his innovative approaches to the synthesis of biologically active substances.
Latest Patents
Hessler's latest patents include a process for making estra-4,9(10)-diene steroids. This novel process allows for the production of estra-4,9(10)-diene-3,17-dione steroids from readily available 19-nor-androst-4-ene-3-one steroids through a straightforward three-step process. The products of this process serve as important intermediates in the preparation of biologically active substances. Another significant patent involves the preparation of corticoids from 17-keto steroids. This patent discloses a 20,21-dihalo steroid and a steroidal sulfoxide, along with processes to produce them. These compounds are intermediates that are useful in the preparation of pharmaceutically valuable corticoids.
Career Highlights
Throughout his career, Edward J Hessler has worked with prominent companies such as The Upjohn Company and Bridge Organics Company. His work has significantly impacted the field of pharmaceutical chemistry, particularly in the development of steroid-based medications.
Collaborations
Hessler has collaborated with notable coworkers, including Jerry A Walker and Verlan H VanRheenen. These collaborations have contributed to the advancement of research and innovation in steroid chemistry.
Conclusion
Edward J Hessler's innovative work in steroid chemistry and his numerous patents highlight his significant contributions to the field. His research continues to influence the development of important pharmaceutical compounds.