This inventor holds 11 USPTO granted patents. Top assignee: Alza Corporation. Active years: 1989-2001.
Location History:
- Mountain View, CA (US) (1989 - 1994)
- Bedford, GB (1995 - 1997)
- Carlton, GB (1997 - 2001)
Company Filing History:
Years Active: 1989-2001
Title: The Innovations of Philip W. Ledger
Introduction
Philip W. Ledger is a notable inventor based in Mountain View, CA (US). He has made significant contributions to the field of electrotransport delivery systems, holding a total of 11 patents. His work focuses on reducing skin irritation during the delivery of ionized drugs, showcasing his commitment to improving medical technologies.
Latest Patents
One of Ledger's latest patents is centered on the reduction of skin irritation during electrotransport delivery. This invention is directed to a composition and product for use in an electrotransport device. The composition includes an ionized drug, an anti-inflammatory agent, and a solvent. Preferably, the anti-inflammatory agent is hydrocortisone or esters thereof, while the solvent may consist of water and materials such as alcohol, glycol, glycerol, cyclodextrin, nonionic surfactants, or mixtures thereof. Additionally, the composition may include a gel matrix that is a swellable, hydrophilic polymer, a water-soluble hydrophilic polymer, or a solid polymer. A hydrophobic polymer and/or additives may also be included to enhance the effectiveness of the delivery system.
Career Highlights
Philip W. Ledger has had a distinguished career, primarily working with Alza Corporation. His innovative approaches have led to advancements in drug delivery systems, making significant impacts in the medical field. His dedication to research and development has positioned him as a key figure in the industry.
Collaborations
Throughout his career, Ledger has collaborated with esteemed colleagues, including Michel J. Cormier and Alfred A. Amkraut. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Philip W. Ledger's contributions to the field of electrotransport delivery systems highlight his innovative spirit and dedication to improving medical technologies. His work continues to influence the industry, paving the way for future advancements.