Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6813926 | Measurement of surface wear | Ronald Ian Cotterill, David Michael Lomas | 2004-11-09 |
| 6765465 | Magnetic clamping arrangement | Ronald Ian Cotterill, David Michael Lomas | 2004-07-20 |
| 6330820 | Friction material testing apparatus | Ronald Ian Cotterill, James B. Marshall, Alan Davenport | 2001-12-18 |
| 6301950 | Measurement of surface wear | Ronald Ian Cotterill | 2001-10-16 |