% Expired Patents = 28.6

EPO Patents = 14

Forward Citations = 4

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15 inventors (with patents filed for the assignee):

Philippe Jacques Myriam Cappelle (3 out of 3 patents)

Kurt Thierry S Verhelst (3 out of 3 patents)

Bernard Heptia (2 out of 2 patents)

4. Damien Gabriel (2 out of 2 patents)

5. Sébastien Launois (2 out of 4 patents)

6. Sébastien Patoux (2 out of 11 patents)

7. Alain Germeau (2 out of 4 patents)

8. Isabelle Willems (2 out of 2 patents)

9. Sébastien Martinet (2 out of 19 patents)

10. Alain M Gourgue (2 out of 15 patents)

11. Carl Szocs (1 out of 1 patent)

12. Denis Leruth (1 out of 1 patent)

13. Hubert Halleux (1 out of 1 patent)

14. Kevin De Bois (1 patent)

15. Mohamed Takhim (3 patents)

7 patents: Sort by Forward Citations

1. 12441617 - Method for purification of at least one aqueous solution of phosphoric acid (2025-10-14),

2. 11161741 - Method for producing polyphosphoric acid and device for such a method (2021-11-02),

3. 10577288 - Iron-based nutritive composition (2020-03-03),

4. 9902658 - Iron-based nutritive composition (2018-02-27),

5. 9505664 - Inorganic nutritive iron composition (2016-11-29),

6. 9287558 - Lithium batteries containing lithium-bearing iron phosphate and carbon (2016-03-15),

7. 8703332 - Lithium batteries containing lithium-bearing iron phosphate and carbon (2014-04-22),

Company Overview

Prayon is a global leader in phosphate chemistry, offering a wide range of purified phosphoric acids, phosphate salts, and phosphorus derivatives for various industries. With over 130 years of experience, Prayon focuses on innovation, sustainability, and customer satisfaction, providing high-quality products and services to clients worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

7 Patents

#1 in Engis

#338 in Belgium

Engis, Belgium

Prayon

Forward Citations = 4

15 inventors:

Philippe Jacques Myriam Cappelle (3 out of 3 patents)

Kurt Thierry S Verhelst (3 out of 3 patents)

Bernard Heptia (2 out of 2 patents)

4. Damien Gabriel (2 out of 2 patents)

5. Sébastien Launois (2 out of 4 patents)

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

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]

14 patents (EPO):

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]