Bernhard Piotrowski

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Lohmar, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing flexible PVC
- Patent number 6,350,400
- Issue date Feb 26, 2002
- HT Troplast AG
- Bernhard Piotrowski
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Reactor for heterogeneous-phase reactions
- Patent number 5,277,878
- Issue date Jan 11, 1994
- Huels Aktiengesellschaft
- Bernhard Piotrowski
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the preparation of 1,2-dichloroethane
- Patent number 4,783,564
- Issue date Nov 8, 1988
- Huels Troisdorf AG
- Bernhard Piotrowski
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of making fibrids from thermoplastics
- Patent number 4,642,262
- Issue date Feb 10, 1987
- Dynamit Nobel AG
- Bernhard Piotrowski
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING