Gerhard Martin

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Hanover, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method of reverse degassing an extrusion melt and an extrusion devi...
- Patent number 5,130,070
- Issue date Jul 14, 1992
- Hermann Berstorff Maschinenbau GmbH
- Gerhard Martin
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for extruding a thermoplastic plastics material foam
- Patent number 5,064,587
- Issue date Nov 12, 1991
- Hermann Berstorff Maschinenbau GmbH
- Joachim Meyke
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Reverse degasification screw extruder with vacuum seal
- Patent number 4,265,547
- Issue date May 5, 1981
- Hermann Berstorff Maschinenbau GmbH
- Gerhard Martin
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL