Techsep
Patent Owner
Stats
- 1 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Apr 20, 1999 most recent publication
Details
- 1 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 114 Total Citation Count
- Dec 19, 1988 Earliest Filing
- 5 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
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Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5366624 Sealing ring for a bundle of inorganic membranes in a filtering moduleExpiredNov 08, 93Nov 22, 94[B01D]
5240612 Filtration of liquid media under conditions of non-steady tangential flowExpiredFeb 13, 92Aug 31, 93[B01D]
4992178 Inorganic ultrafiltration of microfiltration membrane modified by a hydrophilic polymer, its preparation process and its use for the separation of proteinsExpiredDec 19, 88Feb 12, 91[B01D]
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