Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10487706 | Lubricating system for internal combustion engine, oil pan apparatus, and internal combustion engine | Ronald V. Post | 2019-11-26 |
| 9624797 | Lubricating system for internal combustion engine, oil pan apparatus, and internal combustion engine | Ronald V. Post | 2017-04-18 |
| 8973905 | Venturi insert for a carburetor, and carburetor, system and apparatus incorporating the same | Christopher D. Thorn | 2015-03-10 |
| 8801819 | Air cleaner assembly | Terrence M. Rotter, William D. Koenigs, Shaoping Wang | 2014-08-12 |
| 8419834 | Air cleaner assembly | Terrence M. Rotter, William D. Koenigs, Shaoping Wang | 2013-04-16 |
| 8052780 | Air cleaner assembly | Terrence M. Rotter, William D. Koenigs, Shaoping Wang | 2011-11-08 |
| D555775 | Air cleaner | Jeremy Gilles, William D. Koenigs, Terrence M. Rotter | 2007-11-20 |
| 6935293 | Oil circuit for twin cam internal combustion engine | Terrence M. Rotter, Robert W. Richards, David B. Reinbold, William D. Koenigs, Reid L. Hanson | 2005-08-30 |
| 6837206 | Crankcase cover with oil passages | William D. Koenigs | 2005-01-04 |
| 6837207 | Inverted crankcase with attachments for an internal combustion engine | Terrence M. Rotter | 2005-01-04 |
| 6752846 | Panel type air filter element with integral baffle | Terrence M. Rotter, Theodore E. Wehrman | 2004-06-22 |
| 6742488 | Component for governing air flow in and around cylinder head port | Yun Huang, Terrence M. Rotter, Steven P. Lewis | 2004-06-01 |
| 6732701 | Oil circuit for twin cam internal combustion engine | Terrence M. Rotter, Robert W. Richards, William D. Koenigs | 2004-05-11 |
| 6672269 | Automatic compression release mechanism | Robert W. Richards | 2004-01-06 |
| D474266 | Air filter | Terrence M. Rotter, Theodore E. Wehrman | 2003-05-06 |
| 5211013 | Muffler heat shield and method of attachment | Joseph C. Palof | 1993-05-18 |
| 5113818 | Combination crankcase gasket/baffle | Ronald L. Hall | 1992-05-19 |
| 5067449 | Fitted crankcase breather valve assembly | — | 1991-11-26 |
| 5048478 | Single cylinder engine having multi-functional bracket and method of assembling same | Mark T. Holschuh, Lee E. Roller | 1991-09-17 |
| 4926813 | Inverted port engine with cross-under intake passage | — | 1990-05-22 |
| 4926814 | Crankcase breather and lubrication oil system for an internal combustion engine | — | 1990-05-22 |