Pierre Lefer

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Merville, FR

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Patents Grantslast 30 patents

Information Patent Grant
Composition and method for the production of planar structures, esp...
- Patent number 6,841,039
- Issue date Jan 11, 2005
- Roquette Freres
- Bruno Lokietek
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Aqueous dispersion of pigment(s) and/or filler(s) containing a part...
- Patent number 6,267,812
- Issue date Jul 31, 2001
- Roquette Freres Lestrem
- Pierre Lefer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Manufacturing process for paper
- Patent number 5,129,989
- Issue date Jul 14, 1992
- Roquette Freres
- Serge Gosset
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Composition and process for coating paper and cardboard process for...
- Patent number 4,600,439
- Issue date Jul 15, 1986
- Roquette Freres
- Jean Schneider
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE