| 8198900 |
Automotive battery charging system tester |
Kevin I. Bertness |
2012-06-12 |
| 7940053 |
Battery tester with promotion feature |
Dennis V. Brown, Kevin I. Bertness, Stephen J. McShane, William G. Sampson |
2011-05-10 |
| 7791348 |
Battery tester with promotion feature to promote use of the battery tester by providing the user with codes having redeemable value |
Dennis V. Brown, Kevin I. Bertness, Stephen J. McShane, William G. Sampson |
2010-09-07 |
| 6914413 |
Alternator tester with encoded output |
Kevin I. Bertness |
2005-07-05 |
| 6456045 |
Integrated conductance and load test based electronic battery tester |
Kevin I. Bertness |
2002-09-24 |
| 6445158 |
Vehicle electrical system tester with encoded output |
Kevin I. Bertness |
2002-09-03 |
| 6351102 |
Automotive battery charging system tester |
— |
2002-02-26 |
| 6225808 |
Test counter for electronic battery tester |
Philip Varghese, Michael R. Cable, David Lewis |
2001-05-01 |
| 5831435 |
Battery tester for JIS Standard |
— |
1998-11-03 |