RWE-DEA AKTIENGESELLSCHAFT FUER MINERALOEL UND CHEMIE
Patent Owner
Stats
- 5 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Feb 04, 2003 most recent publication
Details
- 5 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 847 Total Citation Count
- Jan 30, 1975 Earliest Filing
- 39 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
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Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
6245253 Liquid composition and its use as magneto-rheological liquidExpiredJun 25, 99Jun 12, 01[H01F]
2001/0001,787 GRANULATION METHOD FOR DIRT-DISSOLVING, AMPHIPHILIC POLYMERS BY COMPRESSED AGGLOMERATIONAbandonedMay 27, 99May 24, 01[C11D]
6180764 Process for producing hydrotalcites by hydrolyzing metal alcoholatesExpiredApr 30, 99Jan 30, 01[C07F, C01F]
4885405 Process for the production of pure dimethylether and a catalyst used in the processExpiredDec 10, 87Dec 05, 89[C07C]
4802956 Process for the purification of dimethylether by distillationExpiredNov 20, 86Feb 07, 89[C07C, B01D]
4556736 Method for producing crystalline acrylamido alkyl trialkylammonium chloridesExpiredJul 30, 84Dec 03, 85[C07C]
4544776 Process for separating methanol from the reaction products obtained in the etherification of C.sub.4 through C.sub.7 isoolefins with methanolExpiredDec 20, 82Oct 01, 85[C07C]
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