Merseyside, United Kingdom

Francis J Leng

This inventor holds 2 USPTO granted patents. Top assignee: Lever Brothers Company. Active years: 1986-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Francis J Leng. Retrieved from https://idiyas.com/inventor/francis-j-leng

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


% Patents Active = 100.0

Average Co-Inventor Count = 2.7

ph-index = 2

Forward Citations = 44(Granted Patents)


Company Filing History:


Years Active: 1986-1989

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2 patents (USPTO):Explore Patents

Title: Innovations of Francis J Leng in Detergent Composition

Introduction

Francis J Leng is a notable inventor based in Merseyside, GB. He has made significant contributions to the field of detergent compositions, holding a total of 2 patents. His work focuses on creating effective and innovative cleaning solutions.

Latest Patents

Among his latest patents is a concentrated liquid detergent composition containing anionic surfactants. This composition is designed to remain liquid at or below ambient temperature. Another notable patent involves detergent gel compositions in hexagonal liquid crystal form. These compositions consist of stable transparent, translucent, or opaque hexagonal phase gels that include a secondary surfactant, which can be either anionic or cationic. The invention also incorporates an additive that helps to stabilize the surfactant system in a hexagonal phase, along with optional ingredients such as builders, perfumes, and water. These innovative detergent compositions can be utilized for various cleaning applications, including manual dishwashing.

Career Highlights

Francis J Leng has been associated with Lever Brothers Company, where he has contributed to the development of advanced cleaning products. His expertise in formulating detergent compositions has led to the creation of effective solutions that meet consumer needs.

Collaborations

He has worked alongside notable colleagues, including David Machin and David A Reed, contributing to a collaborative environment that fosters innovation in product development.

Conclusion

Francis J Leng's contributions to detergent compositions highlight his innovative spirit and dedication to improving cleaning solutions. His patents reflect a commitment to creating effective products that enhance everyday cleaning tasks.

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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