Eppendorf Geratebau Netheler + Hinz GmbH

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4751186 Process for performing sample analyses and rack for performing the processExpiredFeb 15, 85Jun 14, 88[G01N]
4727032 Process for the thermostatic control of a sample fluid to be analyzed, apparatus for performing the processExpiredFeb 15, 85Feb 23, 88[G01N]
4714527 Process for measuring the potential difference between a sample liquid and a reference electrolyteExpiredMay 08, 86Dec 22, 87[G01N]
4713219 Plastic reaction vesselExpiredOct 20, 86Dec 15, 87[B01L]
4664526 Process and apparatus for mixing a liquid sample to be analyzedExpiredSep 18, 85May 12, 87[B01F]
4596649 Measuring system comprising ion-selective electrodesExpiredMar 15, 85Jun 24, 86[G01N]
4560269 Cell for mixing operations and for optical examinationExpiredDec 14, 83Dec 24, 85[G01N]
4533255 Process for mixing liquid samples to be analyzed, as well as apparatus for performing this processExpiredJun 24, 83Aug 06, 85[B01F]
4470317 Pipetting deviceExpiredJan 27, 83Sep 11, 84[G01N]
4406170 Repeating pipetting deviceExpiredFeb 19, 82Sep 27, 83[B01L]
4285791 Electrode systemExpiredJul 03, 80Aug 25, 81[G01N]
4229104 Mixing cuvetteExpiredMar 07, 78Oct 21, 80[G01N]

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