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For the Inventor, By the Inventor

Villers-Cotterêts, France

Jean-Claude J Grognet

This inventor holds 5 USPTO granted patents. Top assignee: L'oreal. Active years: 1976-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Jean-Claude J Grognet. Retrieved from https://idiyas.com/inventor/jean-claude-j-grognet

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

USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 2.1

ph-index = 5

Forward Citations = 191(Granted Patents)


Location History:

  • Gagny, FR (1976 - 1978)
  • Villers S/Coudun, FR (1984)

Company Filing History:

goldMedal5 out of 5,240 
 
L'oreal
 patents

Years Active: 1976-1984

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5 patents (USPTO):Explore Patents
1. 4481961 - Method for setting hair and a device for carrying out the said method (1984-11-13),
2. 4076912 - Tetrapolymers comprising (a) unsaturated acids (b) vinyl esters (c) (1978-02-28),
3. 4070533 - Terpolymer of (a) crotonic acid (b) vinyl acetate and (c) allyl or (1978-01-24),
4. 3966404 - Hair laquer or hair setting composition containing a terpolymer (1976-06-29),
5. 3966403 - Hair lacquer or hair setting composition containing a tetrapolymer (1976-06-29),

Title: Innovations by Jean-Claude J Grognet

Introduction

Jean-Claude J Grognet is a notable inventor based in Villers-Cotterêts, France. He has made significant contributions to the field of cosmetic chemistry, particularly in hair care products. With a total of 5 patents to his name, Grognet's work has had a lasting impact on the industry.

Latest Patents

One of Grognet's latest patents is a method for setting hair and a device for carrying out this method. This innovative approach involves a hair setting process that occurs after partial drying but before unrolling the hair from curlers or rollers. The hair is subjected to a conditioning step in an atmosphere with a relative humidity of 36 to 80% at temperatures ranging from 35°C to 75°C for a duration of 5 to 60 minutes. Another significant patent involves tetrapolymers that comprise unsaturated acids, vinyl esters, and various branched esters. These copolymers are utilized in cosmetic compositions for hair, such as hair lacquers or setting lotions, typically in amounts of about 1-4 weight percent of the composition.

Career Highlights

Jean-Claude J Grognet is associated with L'Oréal, a leading company in the cosmetics industry. His work at L'Oréal has allowed him to develop innovative products that enhance hair care and styling. Grognet's expertise in cosmetic chemistry has positioned him as a key figure in the development of advanced hair setting techniques.

Collaborations

Throughout his career, Grognet has collaborated with notable professionals in the field, including Christos Papantoniou and Jean-Paul H Beck. These collaborations have contributed to the advancement of hair care technologies and the development of effective cosmetic formulations.

Conclusion

Jean-Claude J Grognet's contributions to the field of cosmetic chemistry, particularly in hair care, have been significant. His innovative patents and work at L'Oréal demonstrate his commitment to enhancing hair styling techniques. Grognet's legacy in the industry continues to influence the development of new and effective hair care products.

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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