Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884397 | Control system topping loop | Richard F. LaPrad | 1989-12-05 |
| 4845943 | Control method for topping loop | Richard F. LaPrad | 1989-07-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884397 | Control system topping loop | Richard F. LaPrad | 1989-12-05 |
| 4845943 | Control method for topping loop | Richard F. LaPrad | 1989-07-11 |