Pierre Berger

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Saint-Etienne, FR

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Patents Grantslast 30 patents

Information Patent Grant
Process and apparatus for hydrolyzing cellulose material
- Patent number 4,478,644
- Issue date Oct 23, 1984
- Creusot-Loire
- Pierre Berger
- C13 - SUGAR INDUSTRY
Information Patent Grant
Fuel supply method for a gasification chamber
- Patent number 4,466,809
- Issue date Aug 21, 1984
- Creusot-Loire
- Rolande Kissel
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Casing for a machine, with several parallel screws, for treating ma...
- Patent number 4,308,655
- Issue date Jan 5, 1982
- Creusot-Loire
- Pierre Berger
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for the continuous impregnation of a cellulosic material
- Patent number 4,214,947
- Issue date Jul 29, 1980
- Creusot-Loire
- Pierre Berger
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and apparatus for grinding chips into paper pulp
- Patent number 4,088,528
- Issue date May 9, 1978
- Pierre Berger
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Device for degassing plastic materials
- Patent number 4,057,376
- Issue date Nov 8, 1977
- Creusot-Loire
- Pierre Berger
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL