Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4288525 | Photosensitive materials | John V. Shepherd | 1981-09-08 |
| 4234673 | Manufacture of signs using photoimaging and heat transfer | Simon L. Scrutton, John V. Shepherd, John S. Thornley | 1980-11-18 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4288525 | Photosensitive materials | John V. Shepherd | 1981-09-08 |
| 4234673 | Manufacture of signs using photoimaging and heat transfer | Simon L. Scrutton, John V. Shepherd, John S. Thornley | 1980-11-18 |