Wolfgang Calaminus

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Krefeld, DE

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Patents Grantslast 30 patents

Information Patent Grant
Continuous process and apparatus for recovering metal from metal an...
- Patent number 7,976,611
- Issue date Jul 12, 2011
- Currenta GmbH & Co. OHG
- Joachim Beyer
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for producing and purifying 3-(3-hydroxyphenyl)-1,1,3-trimet...
- Patent number 6,225,512
- Issue date May 1, 2001
- Bayer Aktiengesellschaft
- Stefan Westernacher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Liquid crystalline bis-chlorocarbonic acid esters
- Patent number 5,144,055
- Issue date Sep 1, 1992
- Bayer Aktiengesellschaft
- Hanns P. Muller
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Liquid crystalline bis-chlorocarbonic acid esters, a process for th...
- Patent number 4,980,441
- Issue date Dec 25, 1990
- Bayer Aktiengesellschaft
- Hanns P. Muller
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Method For Recovering Metals From Waste and Other Materials Compris...
- Publication number 20090129996
- Publication date May 21, 2009
- Bayer Industry Services GmbH & Co. OHG
- Joachim Beyer
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...