% Expired Patents = 20.0

Trademarks = 1

Forward Citations = 63

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8 inventors (with patents filed for the assignee):

Roger-Marc Nicoud (2 out of 5 patents)

Gerard Paul Hotier (2 out of 52 patents)

Michel Perrut (1 out of 9 patents)

4. Nicolas Couenne (1 out of 4 patents)

5. Choua Cohen (1 out of 14 patents)

6. G Erard Hotier (1 out of 1 patent)

7. William W Wight (1 out of 2 patents)

8. Richard A Becker (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 6821429 - Method and device for capturing fine particles by trapping in a solid mixture of carbon dioxide snow type (2004-11-23),

2. 6099736 - Process for simulated moving bed separation with a constant recycle rate (2000-08-08),

3. 5578216 - Chromatographic simulated mobile bed separation process with dead volume (1996-11-26),

4. 5578215 - Chromatographic simulated mobile bed separation process with dead volume (1996-11-26),

5. 4613436 - Membrane assembly for fluid separations-disk (1986-09-23),

Company Overview

Separex is a leading provider of gas separation technology for the energy industry. With over 30 years of experience, Separex offers innovative solutions for natural gas processing, dehydration, and sulfur removal. The company's patented membrane technology is highly efficient and cost-effective, helping clients increase productivity and reduce environmental impact. Separex is committed to delivering top-quality products and services to its global customer base.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

5 Patents

#1 in Champigneulles

#2,863 in France

Champigneulles, France

Separex

Forward Citations = 63

8 inventors:

Roger-Marc Nicoud (2 out of 5 patents)

Gerard Paul Hotier (2 out of 52 patents)

Michel Perrut (1 out of 9 patents)

4. Nicolas Couenne (1 out of 4 patents)

5. Choua Cohen (1 out of 14 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Separex. Retrieved from https://idiyas.com/company/separex

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

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]