Wilhelm Knobloch

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Schworstadt, DE

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Patents Grantslast 30 patents

Information Patent Grant
Tetra (hydroxphenyl) alkanes
- Patent number 5,554,797
- Issue date Sep 10, 1996
- OCG Microelectronic Materials, Inc.
- Reinhard Schulz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Positive photoresists with enhanced resolution and reduced crystall...
- Patent number 5,436,098
- Issue date Jul 25, 1995
- Ciba-Geigy Corporation
- Reinhard Schulz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Positive photoresists containing quinone diazide photosensitizer, a...
- Patent number 5,296,330
- Issue date Mar 22, 1994
- Ciba-Geigy Corp.
- Reinhard Schulz
- C07 - ORGANIC CHEMISTRY