Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885932 | Determination of cleanliness level of foam reservoir | Kenneth A. Norton, Bruce Cowger | 1989-12-12 |
| 4824487 | Cleaning of polyurethane foam reservoir | — | 1989-04-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885932 | Determination of cleanliness level of foam reservoir | Kenneth A. Norton, Bruce Cowger | 1989-12-12 |
| 4824487 | Cleaning of polyurethane foam reservoir | — | 1989-04-25 |