Dieter Kupies

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Duisburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the separation and recovery of rhodium from the product...
- Patent number 5,294,415
- Issue date Mar 15, 1994
- Hoechst Aktiengesellschaft
- Peter Lappe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for recovering rhodium
- Patent number 5,085,835
- Issue date Feb 4, 1992
- Hoechst Aktiengesellschaft
- Jurgen Weber
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Novel recovery process
- Patent number 4,990,639
- Issue date Feb 5, 1991
- Hoechst AG
- Ludger Bexten
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the purification of sulfonated aryl phosphines
- Patent number 4,623,490
- Issue date Nov 18, 1986
- Ruhrchemie Aktiengesellschaft
- Ludger Bexten
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the recovery of water-soluble hydroformylation catalyst...
- Patent number 4,504,588
- Issue date Mar 12, 1985
- Ruhrchemie Aktiengesellschaft
- Roderich Gartner
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL