Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7674186 | Direction and distance correcting golf putter | David M. Bitko, Robert A. Coon, John Piotrowski | 2010-03-09 |
| 6358162 | Golf putter with green-reading features | John Piotrowski, David M. Bitko | 2002-03-19 |
| 6180873 | Current conducting devices employing mesoscopically conductive liquids | — | 2001-01-30 |
| 5900602 | Electric switch for enhancing electric current flow by quantum tunneling effect | — | 1999-05-04 |
| 5359162 | Shock sensor switch having a liquid conductor | — | 1994-10-25 |
| 5354958 | Jitter switch | — | 1994-10-11 |
| 5227250 | Glass-to-metal seal | Thomas A. Bobal, Jeffrey M. Arouh | 1993-07-13 |
| 5198628 | Shock insensitive tilt switch with floating spherical restrictor to inhibit flow of conductive liquid | — | 1993-03-30 |
| 4943690 | Position insensitive shock sensor with closure delay | — | 1990-07-24 |
| 4683355 | Position insensitive shock sensor | — | 1987-07-28 |
| 4385288 | Motion responsive alarm system | — | 1983-05-24 |
| 4260970 | Position insensitive mercury relay switch | — | 1981-04-07 |