Ulrich Steffen

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Leverkusen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the production of cross-linked graft copolymers
- Patent number 4,357,445
- Issue date Nov 2, 1982
- Bayer Aktiengesellschaft
- Ulrich Steffen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of ethylene-vinyl ester graft polymer d...
- Patent number 4,329,267
- Issue date May 11, 1982
- Bayer Aktiengesellschaft
- Klaus Riebel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Graft copolymers containing allyl compounds
- Patent number 4,263,418
- Issue date Apr 21, 1981
- Bayer Aktiengesellschaft
- Ulrich Steffen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Graft copolymers containing (meth)acrylic acid or (meth)acrylic aci...
- Patent number 4,241,197
- Issue date Dec 23, 1980
- Bayer Aktiengesellschaft
- Ulrich Steffen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Graft copolymers
- Patent number 4,153,646
- Issue date May 8, 1979
- Bayer Aktiengesellschaft
- Ulrich Steffen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...