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For the Inventor, By the Inventor

Senlis, France

Francis Pruche

This inventor holds 19 USPTO granted patents and 4 published patent applications and 6 EPO patents, primarily in Cosmetic Chemistry. Top assignees: L'oreal, Loreal Sa, Societe L'oreal Sa. Active years: 1995-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Francis Pruche. Retrieved from https://idiyas.com/inventor/francis-pruche

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

USPTO Granted Patents = 19 

% Patents Active = 57.9

 

Average Co-Inventor Count = 2.1

ph-index = 8

Forward Citations = 304(Granted Patents)


Location History:

  • Paris, FR (1995 - 2002)
  • Senlis, FR (2002 - 2019)

Company Filing History:

goldMedal11 out of 5,240 
 
L'oreal
 patents
silverMedal5 out of 978 
 
Loreal Sa
 patents
bronzeMedal3 out of 203 
 
Societe L'oreal Sa
 patents

Years Active: 1995-2019

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Areas of Expertise:
Dehydroascorbic Acid
Double-Stranded RNA
Coloring Composition
Keratin Fibres
Antioxidative Compositions
Beauty Analysis
Skin Type Evaluation
Hair Loss Treatment
Hydroxystilbenes
Stilbene Derivatives
Cellular Aging Diagnosis
Free Radical Scavenging
19 patents (USPTO):Explore Patents
1. 10173080 - Dehydroascorbic acid or monomeric, polymeric or isomeric derivative thereof and an amine for artificially coloring the skin (2019-01-08),
2. 9643032 - Application of dehydroascorbic acid or derivatives/isomers thereof for artificially coloring the skin (2017-05-09),
3. 9012418 - Topical administration of at least one double-stranded RNA oligonucleotide (dsRNA) (2015-04-21),
4. 8084268 - Method of evaluating the potential of the skin for scavenging free radicals (2011-12-27),
5. 7704285 - Composition for coloring a keratin material, comprising at least two components, and coloring processes (2010-04-27),
6. 7634103 - Analysis using a three-dimensional facial image (2009-12-15),
7. 7324668 - Feature extraction in beauty analysis (2008-01-29),
8. 7270685 - Coloring composition for keratin fibres comprising a system limiting the transcutaneous passage of an oxidation dye (2007-09-18),
9. 7211043 - Method, system and device for evaluating skin type (2007-05-01),
10. 7077871 - Coloring composition for keratin fibres comprising a system limiting the transcutaneous passage of an oxidation dye (2006-07-18),
11. 6953486 - Dyeing composition, method for obtaining the same and use for coloring the skin and/or keratinous fibres (2005-10-11),
12. 6761697 - Methods and systems for predicting and/or tracking changes in external body conditions (2004-07-13),
13. 6723136 - Coloration composition, process for obtaining the same and its use for the coloration of keratin fibres (2004-04-20),
14. 6468972 - Method to promote, stimulate and/or delay hair loss by a brady kinin antagonist (2002-10-22),
15. 6409772 - Use of hydroxystilbenes for dyeing, ready-to-use composition containing them and dyeing process (2002-06-25),

Title: The Innovative Genius of Francis Pruche

Introduction

Francis Pruche, an esteemed inventor based in Senlis, France, is renowned for his remarkable contributions to the field of cosmetic chemistry. With a total of 19 patents to his name, Pruche has pioneered innovations that greatly enhance skin treatment and appearance.

Latest Patents

Among his latest patents is a formulation that involves dehydroascorbic acid or its monomeric, polymeric, or isomeric derivatives combined with an amine for artificially coloring the skin. This innovative approach allows for a regimen centered around the topical application of dehydroascorbic acid and its derivatives to serve as an effective skin self-tanning agent. This process not only benefits the aesthetic appeal of the skin but also involves the potential chemical or enzymatic conversion of ascorbic acid into dehydroascorbic acid in situ, showcasing the advanced application of chemistries in cosmetic solutions.

Career Highlights

Pruche has built a strong career within the cosmetics industry, contributing his expertise to well-known companies such as L'Oréal and L'Oréal SA. His dedication to enhancing personal care products has made a significant impact, combining science with beauty.

Collaborations

Throughout his career, Pruche has collaborated with notable colleagues, including Gilles Rubinstenn and Albert Duranton. These partnerships have further enriched his work and led to the development of innovative products that continue to change the landscape of skincare.

Conclusion

Francis Pruche's inventive prowess and dedication to research have earned him a prominent place in the world of innovation. His 19 patents not only reflect his commitment to excellence but also signify a legacy of creativity in cosmetic chemistry that will influence the industry for years to come.

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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