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For the Inventor, By the Inventor

Châtillon, France

Sylvie Legret

This inventor holds 14 USPTO granted patents and 3 EPO patents, primarily in Cosmetic Formulations. Top assignees: L'oreal, Other. Active years: 1998-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sylvie Legret. Retrieved from https://idiyas.com/inventor/sylvie-legret

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

Calculating rank
USPTO Granted Patents = 14

% Patents Active = 92.9

 

Average Co-Inventor Count = 3.0

ph-index = 11

Forward Citations = 667(Granted Patents)


Company Filing History:

goldMedal13 out of 5,254 
 
L'oreal
 patents
silverMedal1 out of 834,708 
Other
 patents

Years Active: 1998-2014

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Areas of Expertise:
Nanoemulsion
Cosmetics
Dermatological
Ophthalmological
Glycerol Fatty Esters
Alkoxylated Alkenyl Succinates
Oil-in-Water Emulsion
Lipid Vesicles
Stable Emulsion
Oxidation-Sensitive Compounds
Pharmaceutical
Ethylene Oxide
14 patents (USPTO):Explore Patents
1. 8834903 - Nanoemulsion based on sugar fatty esters or on sugar fatty ethers and its uses in the cosmetics, dermatological and/or ophthalmological fields (2014-09-16),
2. 6689371 - Nanoemulsion based on sugar fatty esters or on sugar fatty ethers and its uses in the cosmetics, dermatological and/or ophthalmological fields (2004-02-10),
3. 6541018 - Nanoemulsion based on glycerol fatty esters, and its uses in the cosmetics, dermatological and/or ophthalmological fields (2003-04-01),
4. 6464990 - Nanoemulsion based on ethylene oxide and propylene oxide block copolymers and its uses in the cosmetics, dermatological and/or ophthalmological fields (2002-10-15),
5. 6461625 - Nanoemulsion based on alkoxylated alkenyl succinates or alkoxylated alkenyl succinates of glucose and its uses in the cosmetics, dermatological, opthalmological and/or pharmaceutical fields (2002-10-08),
6. 6419946 - Nanoemulsion based on mixed esters of a fatty acid or of a fatty alcohol, of a carboxylic acid and of a glycerol and its uses in the cosmetics, dermatological and/or ophthalmological fields (2002-07-16),
7. 6413527 - Nanoemulsion based on alkyl ether citrates and its uses in the cosmetics, dermatological, pharmacological and/or ophthalmological fields (2002-07-02),
8. 6375960 - Nanoemulsion based on ethoxylated fatty ethers or on ethoxylated fatty esters and its uses in the cosmetics, dermatological and/or ophthalmological fields (2002-04-23),
9. 6342238 - Organogel comprising an oxidation-sensitive hydrophilic compound, and uses thereof, in particular cosmetic uses (2002-01-29),
10. 6335022 - Nanoemulsion based on oxyethylenated or non-oxyethylenated sorbitan fatty esters, and its uses in the cosmetics, dermatological and/or ophthalmological fields (2002-01-01),
11. 6274150 - Nanoemulsion based on phosphoric acid fatty acid esters and its uses in the cosmetics, dermatological, pharmaceutical, and/or ophthalmological fields (2001-08-14),
12. 6126948 - Stable oil-in-water emulsion, process for its manufacture and its use in (2000-10-03),
13. 5759526 - Composition comprising an aqueous dispersion of lipid vesicles (1998-06-02),
14. 5753241 - Transparent nanoemulsion less than 100 NM based on fluid non-ionic (1998-05-19),

Title: Sylvie Legret: Innovator in Nanoemulsion Technology

Introduction

Sylvie Legret is a prominent inventor based in Chatillon, France, known for her significant contributions to the field of nanoemulsion technology. With a total of 14 patents to her name, she has made remarkable advancements in the cosmetics, dermatological, and ophthalmological sectors.

Latest Patents

One of her latest patents focuses on a nanoemulsion based on sugar fatty esters or sugar fatty ethers. This innovative formulation features oily globules with a number-average size of less than 100 nm. The nanoemulsion comprises a surfactant that remains solid at temperatures of 45°C or lower. The surfactant is selected from esters of fatty acids and sugars, as well as ethers of fatty alcohols and sugars. Additionally, it includes at least one oil with a molecular weight greater than 400. The weight ratio of the oily phase to the surfactant ranges from 2 to 10. This nanoemulsion is designed for various applications, including moisturizing skin and mucous membranes, treating hair, and serving as an eye lotion in the ophthalmological field.

Career Highlights

Throughout her career, Sylvie Legret has worked with renowned companies, including L'Oréal. Her expertise in nanoemulsion technology has positioned her as a leader in the development of innovative cosmetic solutions.

Collaborations

Sylvie has collaborated with notable professionals in her field, including Jean-Thierry Simonnet and Odile Sonneville. These partnerships have contributed to her success and the advancement of her research.

Conclusion

Sylvie Legret's work in nanoemulsion technology exemplifies her dedication to innovation in the cosmetics and healthcare industries. Her patents reflect her commitment to improving products that enhance skin and eye care.

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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