Michel Richard

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L'Isle Adam, FR

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Patents Grantslast 30 patents

Information Patent Grant
Cationic copolymers which are insoluble in water, new dispersions a...
- Patent number 5,340,441
- Issue date Aug 23, 1994
- Societe Francaise Hoechst
- Claude Trouve
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for coating papers and its use in flexographic printing
- Patent number 5,266,162
- Issue date Nov 30, 1993
- Societe Francaise Hoechst
- Michel Richard
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Cationic copolymers which are insoluble in water, new dispensions a...
- Patent number 5,262,238
- Issue date Nov 16, 1993
- Societe Francaise Hoechst
- Claude Trouve
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for coating papers and its use in flexographic printing
- Patent number 5,229,168
- Issue date Jul 20, 1993
- Societe Francaise Hoechst
- Michel Richard
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Refining process for paper pulp using a silica sol
- Patent number 5,225,041
- Issue date Jul 6, 1993
- Societe Francaise Hoechst
- Michel Richard
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Coating process for papers and cardboards and its use for obtaining...
- Patent number 5,219,619
- Issue date Jun 15, 1993
- Societe Francaise Hoechst
- Claude Trouve
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE