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Isochem

USPTO Granted Patents = 16

% Expired Patents = 62.5

CIPO Patents = 2

EPO Patents = 1

Trademarks = 1

Forward Citations = 17

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38 inventors (with patents filed for the assignee):

Henri R Delalu (4 out of 5 patents)

Jacques Berthet (4 out of 4 patents)

Jean-Pierre G Senet (3 out of 42 patents)

4. Hervé Lhermitte (2 out of 3 patents)

5. Cécile Colas-Duriche (2 out of 2 patents)

6. Philippe Leurent (2 out of 2 patents)

7. Laurence Ferruccio (2 out of 4 patents)

8. Charles-Henry Vincent (2 out of 3 patents)

9. Pierre Le Gars (2 out of 3 patents)

10. Fabrice Cornille (2 out of 2 patents)

11. Dominique Gibert (2 out of 2 patents)

12. Didier G Wirth (2 out of 3 patents)

13. Didier Bourissou (1 out of 14 patents)

14. Bianca Martin-Vaca (1 out of 2 patents)

15. Christian Picherit (1 out of 2 patents)

16 patents: Sort by Forward Citations

1. 7879999 - Method for the synthesis of exocyclic derivatives of cycloalkyl-hydrazines and exocyclic derivatives of heterocycloalkyl-hydrazines (2011-02-01),

2. 7667051 - Method of obtaining urethane-protected N-carboxyanhydrides of alpha amino acids (2010-02-23),

3. 7528211 - Method for controlled polymerization of o-carboxy anhydrides derived from α-hydroxy acids (2009-05-05),

4. 7390929 - Method for the continuous synthesis of monoalkyl-hydrazines with a functionalized alkyl group (2008-06-24),

5. 7132535 - Process for preparing hexahydropyridazine-3-carboxylic acid derivatives (2006-11-07),

6. 7078564 - Process for the preparation of ωbenzyl esters of amino diacids and of alkanesulphonates of these esters, and these alkanesulphonates (2006-07-18),

7. 7045659 - Process for the synthesis of monochloramine (2006-05-16),

8. 6905666 - Process for the selective decomposition of hydrazine in a hydrazine/substituted hydrazine/water mixture (2005-06-14),

9. 6858751 - Process for preparing aliphatic fluorofomates (2005-02-22),

10. 6613929 - Process for preparation of fluoroformates (2003-09-02),

11. 6603016 - Process for the preparation of N-carboxyanhydrides (2003-08-05),

12. 6479665 - Process for the preparation of N-carboxyanhydrides (2002-11-12),

13. 6294692 - Process for producing N-formylleucine of high purity (2001-09-25),

14. 6020498 - Process for preparing carboxamide oximes (2000-02-01),

15. 5380856 - Process for preparation of a polymorphic form of terphenadine having a (1995-01-10),

Isochem is a prominent player in the field of specialty chemicals, focusing on the development and manufacturing of high-performance products for various industries. The company specializes in fine chemicals, pharmaceutical intermediates, and custom synthesis, catering to the needs of clients in sectors such as healthcare, agriculture, and electronics. With a strong emphasis on innovation and sustainability, Isochem leverages advanced technologies to deliver tailored solutions, primarily serving markets across Europe and beyond.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

16 Patents

#277 in Paris

#1,209 in France

#37,788 in the World

Isochem

Forward Citations = 17

38 inventors:

Henri R Delalu (4 out of 5 patents)

Jacques Berthet (4 out of 4 patents)

Jean-Pierre G Senet (3 out of 42 patents)

4. Hervé Lhermitte (2 out of 3 patents)

5. Cécile Colas-Duriche (2 out of 2 patents)

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