Sophie Defretin

This inventor holds 6 USPTO granted patents and 1 published patent application, plus 2 CIPO patents and 5 EPO patents. Top assignee: Roquette Freres. Active years: 2002-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sophie Defretin. Retrieved from https://idiyas.com/inventor/sophie-defretin

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

USPTO Granted Patents = 6 (Patent Applications = 1)

% Patents Active = 66.7

CIPO Patents = 2

EPO Patents = 5 (Patent Applications = 5)

Average Co-Inventor Count = 3.9

ph-index = 1

Forward Citations = 16(Granted Patents)

Location History:

Locon, FR (2002 - 2004)
Bethune, FR (2016 - 2020)

Company Filing History:

6 out of 383

Roquette Freres

patents

Years Active: 2002-2020

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10829742 - Production of xylitol from glucose by a recombinant strain (2020-11-10),

2. 10494614 - Production of xylitol from glucose by a recombinant strain (2019-12-03),

3. 9476074 - Strain of microalga that produces squalene (2016-10-25),

4. 9382562 - [object Object] (2016-07-05),

5. 6737090 - Carbon-containing additive for foodstuff fermentations and food compositions containing it (2004-05-18),

6. 6406895 - Process for the production of 1,3-propanediol by fermentation (2002-06-18),

Title: The Innovative Contributions of Sophie Defretin

Introduction

Sophie Defretin is a notable inventor based in Béthune, France. She has made significant contributions to the field of biotechnology, particularly in the production of xylitol. With a total of 6 patents to her name, her work has garnered attention for its innovative approaches and applications.

Latest Patents

One of her latest patents focuses on the production of xylitol from glucose using a recombinant strain. This invention involves a recombinant microbial host that contains a nucleic acid sequence encoding a NAD-specific D-arabitol 4-oxidoreductase (EC 1.1.1.11). This enzyme utilizes D-arabitol as a substrate to produce D-xylulose, which is then converted into xylitol by a NADPH-specific xylitol dehydrogenase. This innovative process highlights her expertise in microbial biotechnology and its applications in producing valuable sugar alcohols.

Career Highlights

Throughout her career, Sophie has worked with prominent companies in the biotechnology sector. Notably, she has been associated with Roquette Frères and Corbion Biotech, Inc. These experiences have allowed her to apply her research in practical settings, contributing to advancements in food and pharmaceutical industries.

Collaborations

Sophie has collaborated with talented individuals in her field, including Astrid Schaefer and Melanie Diefenbacher. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Sophie Defretin's contributions to biotechnology, particularly in the production of xylitol, showcase her innovative spirit and dedication to advancing scientific knowledge. Her work continues to impact the industry positively, and her patents reflect her commitment to innovation.

Profile summary based on public USPTO records.