AC

Ann M. Crespi

ME Medtronic: 22 patents #408 of 6,325Top 7%
📍 Minneapolis, MN: #219 of 6,114 inventorsTop 4%
🗺 Minnesota: #3,093 of 52,454 inventorsTop 6%
Overall (All Time): #197,261 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
8706218 Battery longevity estimator that accounts for episodes of high current drain 2014-04-22
8612167 Estimating remaining battery service life in an implantable medical device Craig L. Schmidt, John D. Wahlstrand, Gregory A. Younker, James W. Busacker 2013-12-17
8452395 Battery longevity estimator that accounts for episodes of high current drain 2013-05-28
8280519 Method of maintaining wet-tantalum electrolytic capacitors John D. Norton, Darrel F. Untereker 2012-10-02
8112158 Method of maintaining wet-tantalum electrolytic capacitors John D. Norton, Darrel F. Untereker 2012-02-07
7570996 Complex-shaped ceramic capacitors for implantable cardioverter defibrillators and method of manufacture John D. Norton, Frank A. Duva 2009-08-04
7459369 High capacitance low resistance electrode Joachim Hossick-Schott 2008-12-02
6409776 Implantable medical device having flat electrolytic capacitor formed with nonthrough-etched and through-hole punctured anode sheets Jenn-Feng Yan, Darrel F. Untereker 2002-06-25
6232012 High reliability electrochemical cell and electrode assembly therefor William G. Howard, Roger W. Kelm, Douglas J. Weiss, Fred J. Berkcwitz, Paul M. Skarstad 2001-05-15
6130005 Heat treated silver vanadium oxide for use in implantable medical devices, articles and methods Kaimin Chen 2000-10-10
6093506 Synthesis of silver vanadium oxide for cathode material Kaimin Chen 2000-07-25
6051038 Method for making a high reliability electrochemical cell and electrode assembly therefor William G. Howard, Roger W. Kelm, Douglas J. Weiss, Fred Berkowitz, Paul M. Skarstad 2000-04-18
6040082 Volumetrically efficient battery for implantable medical devices David P. Haas, William G. Howard, Anthony R. Rorvick, Steven G. Rockow, Andrew J. Ries 2000-03-21
6017656 Electrolyte for electrochemical cells having cathodes containing silver vanadium oxide Kevin Chen 2000-01-25
5955218 Heat-treated silver vanadium oxide for use in batteries for implantable medical devices Kaimin Chen 1999-09-21
5895733 Synthesis method for silver vanadium oxide Kaimin Chen 1999-04-20
5766797 Electrolyte for LI/SVO batteries Kevin Chen 1998-06-16
5458997 Rebalancing of lithium/silver vandium oxide (Li/SVO) cells for improved performance Paul M. Skarstad 1995-10-17
5439760 High reliability electrochemical cell and electrode assembly therefor William G. Howard, Roger W. Kelm, Douglas J. Weiss, Fred Berkowitz, Paul M. Skarstad 1995-08-08
5308714 Method for preventing gas formation in electrochemical cells 1994-05-03
5221453 Silver vanadium oxide cathode material and method of preparation 1993-06-22
5180642 Electrochemical cells with end-of-service indicator Douglas J. Weiss, John W. Cretzmeyer, William G. Howard, Paul M. Skarstad 1993-01-19