Stehouwer; David M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Stehouwer; David M..The latest application filed is for "acid-neutralizing filter media".
- Stehouwer; David M. - Columbus IN
- Stehouwer; David M. - Cookeville TN
| Patent | Date |
|---|---|
| Acid-neutralizing filter media Grant 7,913,858 - Haberkamp , et al. March 29, 2 | 2011-03-29 |
| Acid-Neutralizing Filter Media App 20070267341 - Haberkamp; William C. ; et al. | 2007-11-22 |
| Acid-neutralizing filter media Grant 7,250,126 - Haberkamp , et al. July 31, 2 | 2007-07-31 |
| Acid-neutralizing filter media App 20060032814 - Haberkamp; William C. ; et al. | 2006-02-16 |
| Fuel filter including slow release additive Grant 6,860,241 - Martin , et al. March 1, 2 | 2005-03-01 |
| Fuel filter including slow release additive App 20020195380 - Martin, Harold ; et al. | 2002-12-26 |
| Extended life dual full-flow and bypass filter Grant 6,319,402 - Schwandt , et al. November 20, 2 | 2001-11-20 |
| Fuel filter including slow release additive Grant 6,238,554 - Martin, Jr. , et al. May 29, 2 | 2001-05-29 |
| Fuel filter including slow release additive App 20010000400 - Martin, Harold R. JR. ; et al. | 2001-04-26 |
| Electronically controlled continuous lubricating oil replacement system Grant 6,082,322 - Graham , et al. July 4, 2 | 2000-07-04 |
| Electronically controlled continuous lubricating oil replacement system Grant 5,970,942 - Koeberlein , et al. October 26, 1 | 1999-10-26 |
| Electronically controlled continuous lubricating oil replacement system Grant 5,881,688 - Graham , et al. March 16, 1 | 1999-03-16 |
| Electronically controlled continuous lubricating oil replacement system Grant 5,749,339 - Graham , et al. May 12, 1 | 1998-05-12 |
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