Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4631209 | Manufacture of asbestos-free friction facing material | Ralph Thomas Baker, Eric Timothy Smith, Vaughan T. Dickinson, Brian A. Hargreaves | 1986-12-23 |
| 4529653 | Flexible, asbestos-free gasket material | Brian A. Hargreaves, Robert A. Lancaster, John D. Crabtree | 1985-07-16 |
| 4529662 | Asbestos-free sheet material for spiral-wound gaskets | Robert A. Lancaster, Brian A. Hargreaves | 1985-07-16 |
| 4529663 | Flexible, asbestos-free gasket material | Robert A. Lancaster, Brian A. Hargreaves | 1985-07-16 |