Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4984316 | Bed warmer | Stuart M. Simpson, Jonathan Richards | 1991-01-15 |
| 4927741 | Processing of exposed lithographic printing plates by conducting second exposure under water | Stuart M. Simpson, John E. Parkinson, Alan H. Rogers | 1990-05-22 |