Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4712736 | Method and system for maintaining a spray pattern | David Bray | 1987-12-15 |
| 4580443 | Detecting leaks | Peter E. G. Marshall, David J. Bray, John F. Wilson | 1986-04-08 |
| 4577489 | Detecting leaks | Peter E. G. Marshall, John F. Wilson | 1986-03-25 |
| 4577490 | Detecting leaks | David J. Bray, Peter E. Johnson, Peter E. G. Marshall, Iain H. Murdoch | 1986-03-25 |
| 4477986 | Method of, and apparatus for, detecting leaks | Peter E. G. Marshall, John F. Wilson | 1984-10-23 |