Brentwood, United Kingdom

David Francis Jennings

This inventor holds 1 USPTO granted patent. Top assignee: Ciba-Geigy Ag. Active years: 1978.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David Francis Jennings. Retrieved from https://idiyas.com/inventor/david-francis-jennings

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 1978

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1 patent (USPTO):Explore Patents

Title: David Francis Jennings: Innovator in Polyester Film Technology

Introduction

David Francis Jennings is a notable inventor based in Brentwood, GB. He has made significant contributions to the field of synthetic materials, particularly in the development of polyester film technology. His innovative work has led to the creation of a patented film base material that enhances the quality and durability of photographic films.

Latest Patents

David Jennings holds a patent for a biaxially oriented synthetic linear polyester film base material. This film is characterized by its highly hydrophobic nature and features a subbing layer that improves adhesion between the film support and photographic emulsion layers. The subbing layer contains a copolymer of vinylidene chloride and an alkyl acrylate or methacrylate, which plays a crucial role in preventing layer separation during the processing of photographic films. His patent is a testament to his innovative approach in enhancing film technology.

Career Highlights

Throughout his career, Jennings has been associated with Ciba-Geigy AG, a company known for its advancements in chemical and pharmaceutical products. His work at Ciba-Geigy has allowed him to focus on developing materials that meet the evolving needs of the photographic industry. His dedication to innovation has positioned him as a key figure in the field.

Collaborations

David Jennings has collaborated with notable colleagues, including Peter John Wright and Geoffrey M Dodwell. These partnerships have fostered a creative environment that has led to significant advancements in their respective fields.

Conclusion

David Francis Jennings is a distinguished inventor whose work in polyester film technology has made a lasting impact on the photographic industry. His innovative patent demonstrates his commitment to enhancing material performance and quality.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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