SOCIETE FRANCAISE HOECHST, A JOINT-STOCK COMPANY OF FRANCE
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Sep 25, 1990 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 32 Total Citation Count
- Feb 25, 1981 Earliest Filing
- 7 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
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Recent Patents
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Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
4959061 Hydrophilic polymer based on acrylic acid and alkali metal acrylate, its method of preparation and its application as an absorbent, in particular of a physiological solutionExpiredApr 01, 88Sep 25, 90[A61F]
4692226 Process to manufacture glyoxylic acid by electrochemical reduction of oxalic acidExpiredAug 29, 86Sep 08, 87[C07C, C07B]
4590249 Cationic ampholytic tetrapolymers and cosmetic compositions containing themExpiredOct 10, 84May 20, 86[A61K, C08F]
4339602 Process of preparation of racemic hydroxyarylglycolic acids and novel products resulting therefromExpiredFeb 25, 81Jul 13, 82[C07C]
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