Location History:
- Mountain View, CA (US) (1998)
- Seattle, WA (US) (2002)
Company Filing History:
2 out of 2,106 
1 out of 260 
Years Active: 1998-2002
Title: Guohua Chen: Innovator in Block and Graft Copolymers
Introduction
Guohua Chen is a notable inventor based in Seattle, WA (US). He has made significant contributions to the field of polymer science, particularly in the development of innovative copolymers for drug delivery applications. With a total of 2 patents, his work has broad implications for both pharmaceutical and cosmetic industries.
Latest Patents
Chen's latest patents include groundbreaking inventions related to block and graft copolymers. One of his notable patents describes copolymers that contain both temperature-sensitive and pH-sensitive polymer components. These copolymers are designed for topical drug delivery, allowing for controlled release of medication at the treatment site. The pH-sensitive component hydrates and swells upon contact with tissue, enhancing drug release and prolonging contact time. Additionally, the temperature-sensitive component helps maintain a sustained release of the drug, making these copolymers highly effective for medical applications.
Another significant patent focuses on hydrophobically-modified bioadhesive polyelectrolytes. This invention combines a bioadhesive polyelectrolyte with a hydrophobic component, allowing for the formulation of polyelectrolyte-agent compositions. These compositions can be used for various administration routes, including topical and systemic applications, making them versatile for delivering pharmaceutically acceptable agents.
Career Highlights
Throughout his career, Guohua Chen has worked with esteemed organizations such as the University of Washington and The Green Cross Corporation. His experience in these institutions has allowed him to collaborate with leading experts in the field and contribute to significant advancements in polymer technology.
Collaborations
Chen has collaborated with notable professionals, including Allan Sachs Hoffman and Tadaaki Inoue. These partnerships have further enriched his research and development efforts, leading to innovative solutions in drug delivery systems.
Conclusion
Guohua Chen's contributions to the field of polymer science, particularly through his patents on block and graft copolymers, highlight his role as a key innovator. His work continues to influence the development of advanced drug delivery systems, showcasing the importance of innovation in improving healthcare solutions.