Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4646516 | Catalyst arrangement for the exhaust system of an internal combustion engine | — | 1987-03-03 |
| 4543924 | Reduction of crankshaft noise from an internal combustion engine | Graham James HOLLAND | 1985-10-01 |