Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6523588 | Tire having tread including orientation of grooves changing across entire tread width | David R. Watkins, Paul Stephens | 2003-02-25 |
| D470453 | Tire tread | — | 2003-02-18 |
| 6200401 | Method of determining groove angle to give optimum tread wear | David R. Watkins | 2001-03-13 |
| 6190478 | Method of manufacturing tire including grooves | David R. Watkins, Paul Stephens | 2001-02-20 |
| D434353 | Vehicle tire | David R. Watkins | 2000-11-28 |
| 6125898 | Motor-cycle radial tire | David R. Watkins | 2000-10-03 |
| 5829503 | Motorcycle tire | David R. Watkins, Nigel Gerard Nock | 1998-11-03 |
| 5746852 | Motorcycle radial tire with rubber member between carcass plies | David R. Watkins, Nigel Gerard Nock | 1998-05-05 |
| 5651845 | Motorcycle radial tire with supplementary breaker fly | David R. Watkins, Nigel Gerard Nock | 1997-07-29 |
| D381303 | Motorcycle tire | — | 1997-07-22 |
| 5529102 | Motorcycle radial tire with supplementary breaker ply | David R. Watkins, Nigel Gerard Nock | 1996-06-25 |
| D323802 | Motorcycle tire | David R. Watkins, Gerald A. Griffiths | 1992-02-11 |
| 4230433 | Bale collector | — | 1980-10-28 |