Location History:
- Kansas City, MO (US) (1993 - 1997)
- Sharonville, OH (US) (1996 - 1997)
- Berkeley Heights, NJ (US) (1998 - 2002)
Company Filing History:
9 out of 236 
2 out of 12 
1 out of 455 Years Active: 1993-2002
Title: The Innovations of Ronald E. Esser: A Pioneering Inventor in Immunosuppressants
Introduction: Ronald E. Esser, a distinguished inventor based in Berkeley Heights, New Jersey, has made significant contributions to the fields of pharmaceuticals and immunology. With a remarkable portfolio of 14 patents, Esser has focused his innovations on developing compounds that demonstrate potential therapeutic benefits, particularly in immunosuppressant applications.
Latest Patents: Among his latest patents, Ronald E. Esser has developed two notable inventions: "Trans cyclopentanyl purine analogs useful as immunosuppressants" and "Trans cyclopentanyl azaadenyl analogs useful as immunosuppressants." These inventions pertain to trans cyclopentanyl purine analogs characterized by a specific structural formula, where the substituent in the 3-position on the cyclopentanyl ring is in the trans configuration relative to the bicyclic substituent. These innovative compounds hold promise for advancing immunosuppressive therapies.
Career Highlights: Ronald E. Esser has had a successful career, particularly noted for his roles in reputable companies such as Hoechst Marion Roussel and Marion Merrell Dow Inc. Through his work with these organizations, Esser has been at the forefront of pharmaceutical research and development, contributing significantly to advancements in medicinal chemistry and drug formulation.
Collaborations: Throughout his career, Esser has collaborated with notable professionals, including colleagues such as David R. Borcherding and Carl K. Edwards, III. These partnerships have fostered a dynamic exchange of ideas and innovative approaches within the realm of drug discovery and development.
Conclusion: Ronald E. Esser's contributions to the development of innovative immunosuppressants highlight his role as a leading inventor in the pharmaceutical industry. With a strong foundation of patents and collaborative efforts with esteemed professionals, Esser continues to impact the field of immunology through his groundbreaking inventions and dedication to advancing medical science.