Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5147695 | Flexible expansion compensation sleeve for connecting sections of pipe | Robert Colley, Christian Ledevehat | 1992-09-15 |
| 5128200 | Anisotropic composite material having an elastomer matrix | Robert Colley, Christian Ledevehat | 1992-07-07 |
| 5123879 | Variable speed transmission device | Christian Ledevehat, Robert Colley, Olivier Parguez | 1992-06-23 |
| 4968288 | Variable speed transmission device | Christian Ledevehat, Robert Colley, Olivier Parguez | 1990-11-06 |
| 4936814 | Transmission belt with anistropic composite material having an elastomer matrix | Robert Colley, Christian Ledevehat | 1990-06-26 |