Alfred Dratva

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Bottmingen, CH

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Patents Grantslast 30 patents

Information Patent Grant
Heterocyclic thioethers as additives for lubricants
- Patent number 6,362,138
- Issue date Mar 26, 2002
- Ciba Specialty Chemicals Corporation
- Hugo Camenzind
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Phosphorus-free multifunctional additives for lubricants
- Patent number 6,255,259
- Issue date Jul 3, 2001
- Ciba Specialty Chemicals Corporation
- Hugo Camenzind
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Heterocyclic thioethers as additives for lubricants
- Patent number 6,150,307
- Issue date Nov 21, 2000
- Ciba Specialty Chemicals Corporation
- Hugo Camenzind
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Benzothiazolylthio or thiadiazolylthio substituted phenols as multi...
- Patent number 6,100,406
- Issue date Aug 8, 2000
- Ciba Specialty Chemicals Corporation
- Hugo Camenzind
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Antiwear performance of engine oils with $g(b)-dithiophosphorylated...
- Publication number 20040242437
- Publication date Dec 2, 2004
- Jose Reyes-Gavlian
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...