Gebruder Knauf Westdeutsche Gipswerke KG
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Dec 08, 1992 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 100 Total Citation Count
- Mar 27, 1979 Earliest Filing
- 4 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
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Recent Publications
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Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
4504533 Gypsum construction sheet with glass fiber/non-woven felt lining sheetExpiredMay 29, 84Mar 12, 85[B32B]
4423016 Process for the production of dry flue gas gypsumExpiredMar 01, 82Dec 27, 83[C22B, C01B, C01F]
4214027 Process for the production of fiber-containing plaster boardsExpiredMar 27, 79Jul 22, 80[B32B]
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