Patents per Year
Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| D1087321 | Rafter baffle | Paul T. Zink | 2025-08-05 | |
| 7307257 | Method and apparatus for on-line measurement of polymer properties | Robert L. Long, Stephen Morgan, Oscar K. Broussard, III | 2007-12-11 | $407,637,000 |
| 6467432 | Poultry house litter implement | Robert L. Lewis | 2002-10-22 | |
| 6092668 | Litter screening machine | Robert L. Lewis | 2000-07-25 | |
| 6072576 | On-line control of a chemical process plant | Michael F. McDonald, Robert L. Long | 2000-06-06 | $1,197,216,000 |
| 4897183 | Litter screening and separating apparatus | Robert L. Lewis | 1990-01-30 |