Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828431 | Strengthened protective structure | — | 1989-05-09 |
| 4699545 | Spray ice structure | Hans O. Jahns | 1987-10-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828431 | Strengthened protective structure | — | 1989-05-09 |
| 4699545 | Spray ice structure | Hans O. Jahns | 1987-10-13 |