Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8360895 | Water slide with banked curve obstacal region | — | 2013-01-29 |
| 4499959 | Tooth configuration for an earth boring bit | Richard H. Grappendorf | 1985-02-19 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8360895 | Water slide with banked curve obstacal region | — | 2013-01-29 |
| 4499959 | Tooth configuration for an earth boring bit | Richard H. Grappendorf | 1985-02-19 |