Location History:
- Philadelphia, PA (US) (1978)
- Langhorne, PA (US) (1996 - 1997)
- Richboro, PA (US) (1983 - 2003)
Company Filing History:
6 out of 115 
3 out of 4,770 
1 out of 145 
Years Active: 1978-2003
Title: **Innovative Contributions of Joel B. Portnoff**
Introduction
Joel B. Portnoff, an inventive mind based in Richboro, Pennsylvania, is recognized for his significant contributions in the field of liposome research and particle size separation. With a total of 11 patents to his name, Portnoff's inventions have advanced the methodologies employed in pharmaceutical and biotechnological applications.
Latest Patents
Among Joel B. Portnoff's latest patents is a process for liposome extrusion. This innovative method involves sizing liposomes by passing a suspension through an aluminum oxide porous film, utilizing varying pore sizes to achieve desired dimensions. The process ensures the production of liposomes that are substantially free of any larger counterparts beyond a predetermined size limit. Additionally, Portnoff has patented a method for the size separation of particles, employing tangential flow filtration. This technique allows particles such as liposomes and lipid particles to be filtered through devices of various pore sizes, facilitating separation into defined size ranges.
Career Highlights
Throughout his career, Portnoff has worked with leading companies in the pharmaceutical industry, including The Liposome Company, Inc. and Merck & Company, Inc. His work has not only contributed to innovation but has also established important protocols used in the research and development of liposomal drugs.
Collaborations
Portnoff has collaborated with esteemed colleagues such as Royden M. Coe and Lawrence T. Boni, further enhancing the research and development efforts in liposome technology and filtration methods. These partnerships underscore the collaborative nature of scientific advancement and the importance of teamwork in achieving innovative outcomes.
Conclusion
Joel B. Portnoff's contributions to the field of liposome research and particle separation exemplify the role of innovation in pharmaceutical sciences. His 11 patents reflect a commitment to advancing methodologies that can significantly impact drug delivery systems and other applications within biotechnology. As the landscape of research continues to evolve, Portnoff's work will undoubtedly serve as a foundation for future innovations in the field.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.