Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4373967 | Process for making resulfurized machinable steel | John K. Strattan, Roy Hetherington, Jr., Austin J. Hiller | 1983-02-15 |
| 4356930 | Container, engagement ring and cover assembly | — | 1982-11-02 |
| 4198249 | Steel substrate for glassing | Roy Hetherington, Jr. | 1980-04-15 |