This inventor holds 27 USPTO granted patents, primarily in Polymer Chemistry. Top assignees: Ciba-Geigy Corporation, Ciba-Geigy Ag, Ciba Specialty Chemicals Corporation. Active years: 1976-1999.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Heaton Mercy, Stockport, Cheshire, EN (1976)
- Stockport, EN (1976 - 1978)
- Heaton Mersey, GB (1990)
- Stockport, GB (1978 - 1999)
Company Filing History:


Years Active: 1976-1999
Areas of Expertise:
Title: Innovations and Contributions of Donald Richard Randell
Introduction: Donald Richard Randell, a prolific inventor based in Stockport, England, has made significant contributions to the field of chitosan derivatives, holding an impressive portfolio of 26 patents. His work primarily focuses on developing innovative materials that have broad applications in various industries, including pharmaceuticals and materials science.
Latest Patents: Randell's latest patents showcase his innovative approach to chitosan derivatives. One notable patent is for "Crosslinked N-substituted chitosan derivatives," which details structural units that exhibit random distribution with specific substituents. These advancements enable chitosan derivatives to function as effective humectants while preventing the adherence and formation of solid deposits on both inorganic and organic substrates. Furthermore, his work emphasizes the preparation methods for these derivatives, which are characterized by a defined composition of structural units, enhancing their utility in various applications.
Career Highlights: Throughout his career, Randell has worked with esteemed organizations such as Ciba-Geigy Corporation and Ciba-Geigy AG. His tenure in these companies has played a crucial role in expanding his research and development capabilities, allowing him to contribute significantly to the scientific community.
Collaborations: Randell's innovative journey has been enriched by collaborations with fellow inventors, including Brian Holt and Brian G. Clubley. These partnerships have fostered a synergistic environment for creativity and the development of groundbreaking technologies.
Conclusion: Donald Richard Randell stands out as an influential figure in the realm of chitosan derivatives. With his extensive patent portfolio and impactful contributions, he continues to drive innovation in his field, significantly influencing research and application practices. His work exemplifies the importance of collaboration and dedication in the advancement of science and technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile