Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6263849 | Ultra light engine valve and method of welding cap thereto | Leslie L. Ecklund, Michael J. Froehlich, Michael Lee Killian, Philip Michael Kline | 2001-07-24 |
| 5619796 | Method of making an ultra light engine valve | Jay M. Larson | 1997-04-15 |
| 5458314 | Temperature control in an ultra light engine valve | — | 1995-10-17 |
| 5413073 | Ultra light engine valve | Jay M. Larson | 1995-05-09 |
| 4724000 | Powdered metal valve seat insert | Jay M. Larson, Sundaram L. Narasimhan, John N. Gilmer | 1988-02-09 |