Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9342908 | Information retrieval and presentation methods and systems | Christian Hirsch, John Grundy | 2016-05-17 |
| 6425233 | Fruit shaker | — | 2002-07-30 |
| 5755476 | Hoist lock | — | 1998-05-26 |
| 5000648 | Barrier lifter | — | 1991-03-19 |
| 4383198 | Fuel injection spark plug | — | 1983-05-10 |