Bentley Laboratories, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4534760 Angular implant deviceExpiredJun 26, 84Aug 13, 85[A61F, A61M]
4534761 Implant deviceExpiredOct 06, 83Aug 13, 85[A61F, A61M]
4512761 Body implantable connectorExpiredOct 06, 83Apr 23, 85[A61B]
4493705 Blood reservoirExpiredAug 10, 82Jan 15, 85[A61M, B01D]
4490254 Blood filterExpiredFeb 25, 80Dec 25, 84[B01D]
4484912 Atraumatic blood access device sealing mechanismExpiredApr 27, 82Nov 27, 84[A61M]
4456223 Flow control apparatusExpiredDec 03, 81Jun 26, 84[F16K]
4447150 Apparatus and method for measuring blood oxygen saturationExpiredFeb 27, 81May 08, 84[G01N]
4444498 Apparatus and method for measuring blood oxygen saturationExpiredAug 20, 82Apr 24, 84[G01N]
4440723 Blood oxygenatorExpiredJul 10, 81Apr 03, 84[A61M]
4439189 Pleural drainage systemExpiredJun 18, 81Mar 27, 84[A61M]
4428934 Method for oxygenating bloodExpiredJul 29, 81Jan 31, 84[A61K]
4372914 Blood oxygenatorExpiredApr 27, 81Feb 08, 83[A61M]
4350157 Atraumatic blood access device valveExpiredJun 03, 80Sep 21, 82[A61M]
4349021 Atraumatic blood access device valveExpiredJun 09, 80Sep 14, 82[A61M]
4297318 Blood oxygenatorExpiredJul 02, 79Oct 27, 81[A61M]
4282180 Blood oxygenatorExpiredAug 09, 77Aug 04, 81[A61M]
4268476 Blood oxygenatorExpiredMay 26, 76May 19, 81[A61M]
4253967 Blood treating methodExpiredApr 09, 79Mar 03, 81[B01D]
4248828 OxygenatorExpiredMar 22, 77Feb 03, 81[A61M]

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