Heidel; David W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Heidel; David W..The latest application filed is for "marine engines and exhaust systems for marine engines".
- Heidel; David W. - Green Lake WI
| Patent | Date |
|---|---|
| Marine engines and exhaust systems for marine engines Grant 9,616,987 - Langenfeld , et al. April 11, 2 | 2017-04-11 |
| Marine engines and exhaust systems for marine engines having a catalyst for treating exhaust Grant 9,174,818 - Langenfeld , et al. November 3, 2 | 2015-11-03 |
| Marine engines and exhaust systems for marine engines having a catalyst for treating exhaust Grant 8,668,538 - Langenfeld , et al. March 11, 2 | 2014-03-11 |
| Marine engine with a water cooled oil gallery Grant 7,178,500 - Belter , et al. February 20, 2 | 2007-02-20 |
| Through-cowl strain relief assembly for outboard motor Grant 4,969,847 - Curtis , et al. November 13, 1 | 1990-11-13 |
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