PPG HELLIGE GMBH

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5007424 Polarographic/amperometric measuring sensorExpiredJun 29, 90Apr 16, 91[G01N]
4993425 Adapter assembly for use with a cranial biosensorExpiredNov 27, 89Feb 19, 91[A61B]
4930506 Combined sensor for the transcutaneous measurement of oxygen and carbon dioxide in the bloodExpiredApr 19, 89Jun 05, 90[A61B]
4840179 Combined sensor for the transcutaneous measurement of oxygen and carbon dioxide in the bloodExpiredNov 17, 87Jun 20, 89[A61B]
4813427 Apparatus and method for preventing hypoxic damageExpiredFeb 17, 87Mar 21, 89[A61B]
4805634 Adapter assembly for use with a cranial biosensorExpiredJun 04, 87Feb 21, 89[A61B]
4784145 Membrane retainer assembly for physiological sensing unitsExpiredMar 16, 87Nov 15, 88[A61B]
4674061 Method and device for the automatic calibration of measuring and indicating appliances for the determination of partial pressure of a gasExpiredOct 12, 82Jun 16, 87[G01N, G06F]
4591881 Arm-deflecting system for recording apparatusExpiredJul 14, 82May 27, 86[G01D]
4432365 Physiological sensing unitExpiredApr 27, 81Feb 21, 84[A61B]
4425918 Membrane retainer arrangement for physiological sensing unitsExpiredOct 02, 81Jan 17, 84[A61B]
4403215 Apparatus for automatically monitoring body functionsExpiredApr 17, 81Sep 06, 83[G08B, A61B]
4336031 Method for the calibration of an oxygen sensing unit and calibration agent thereforExpiredNov 17, 80Jun 22, 82[G01N]
4334541 Thermal protective circuit for a hyperemia-inducing physiological sensorExpiredMar 17, 80Jun 15, 82[A61B]

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