Issued Patents All Time
Showing 25 most recent of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9851411 | Suppressing HF cable oscillations during dynamic measurements of cells and batteries | — | 2017-12-26 |
| 9588185 | Method and apparatus for detecting cell deterioration in an electrochemical cell or battery | — | 2017-03-07 |
| 7425833 | Broad-band low-inductance cables for making Kelvin connections to electrochemical cells and batteries | Kevin I. Bertness | 2008-09-16 |
| 7106070 | Broad-band low-inductance cables for making Kelvin connections to electrochemical cells and batteries | Kevin I. Bertness | 2006-09-12 |
| 6906523 | Method and apparatus for testing cells and batteries embedded in series/parallel systems | Kevin I. Bertness | 2005-06-14 |
| 6737831 | Method and apparatus using a circuit model to evaluate cell/battery parameters | — | 2004-05-18 |
| 6621272 | Programmable current exciter for measuring AC immittance of cells and batteries | — | 2003-09-16 |
| 6495990 | Method and apparatus for evaluating stored charge in an electrochemical cell or battery | — | 2002-12-17 |
| 6466026 | Programmable current exciter for measuring AC immittance of cells and batteries | — | 2002-10-15 |
| 6417669 | Suppressing interference in AC measurements of cells, batteries and other electrical elements | — | 2002-07-09 |
| 6313607 | Method and apparatus for evaluating stored charge in an electrochemical cell or battery | — | 2001-11-06 |
| 6294896 | Method and apparatus for measuring complex self-immitance of a general electrical element | — | 2001-09-25 |
| 6294897 | Method and apparatus for electronically evaluating the internal temperature of an electrochemical cell or battery | — | 2001-09-25 |
| 6262563 | Method and apparatus for measuring complex admittance of cells and batteries | — | 2001-07-17 |
| 6222369 | Method and apparatus for determining battery properties from complex impedance/admittance | — | 2001-04-24 |
| 6172483 | Method and apparatus for measuring complex impedance of cells and batteries | — | 2001-01-09 |
| 6137269 | Method and apparatus for electronically evaluating the internal temperature of an electrochemical cell or battery | — | 2000-10-24 |
| 6037777 | Method and apparatus for determining battery properties from complex impedance/admittance | — | 2000-03-14 |
| 6002238 | Method and apparatus for measuring complex impedance of cells and batteries | — | 1999-12-14 |
| 5821756 | Electronic battery tester with tailored compensation for low state-of charge | Stephen J. McShane, Kevin I. Bertness | 1998-10-13 |
| 5598098 | Electronic battery tester with very high noise immunity | — | 1997-01-28 |
| 5585728 | Electronic battery tester with automatic compensation for low state-of-charge | — | 1996-12-17 |
| 5572136 | Electronic battery testing device | — | 1996-11-05 |
| 5343380 | Method and apparatus for suppressing time-varying signals in batteries undergoing charging or discharging | — | 1994-08-30 |
| 5140269 | Electronic tester for assessing battery/cell capacity | — | 1992-08-18 |