Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5310202 | Skateboard | — | 1994-05-10 |
| 5255477 | Easily cleanable roof gutters | — | 1993-10-26 |
| 5224719 | Skateboard | — | 1993-07-06 |
| 4883294 | Tamper-proof locking device | — | 1989-11-28 |
| 4846080 | Apparatus for regulating air flow through an air port of a chemical recovery furnace | Thomas William Ross, Jr., Robert B. Hill | 1989-07-11 |
| 4838182 | Apparatus for regulating air flow through an air port of a chemical recovery furnace | — | 1989-06-13 |
| 4822428 | Apparatus for cleaning air ports of a chemical recovery furnace | — | 1989-04-18 |
| 4748004 | Apparatus for cleaning air ports of a chemical recovery furnace | — | 1988-05-31 |
| 4706324 | Apparatus for automatically cleaning smelt spouts of a chemical recovery furnace | — | 1987-11-17 |
| 4423533 | Furnace air port cleaner | — | 1984-01-03 |