Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4987829 | Perforator/crusher for plastic bottles | Ronald F. Schley, Joseph Tehrani | 1991-01-29 |
| 4747251 | Portable bin transfer system | Donald W. Van Doorn, James B. Hawkins, Francis W. Carpenter, III, Tommy W. Webb, William D. Beeland | 1988-05-31 |
| 4617862 | Portable bin transfer system | Donald W. Van Doorn, James B. Hawkins, Francis W. Carpenter, III, Tommy W. Webb, William D. Beeland | 1986-10-21 |
| 4463669 | System for baling textile waste from a plurality of sources | Donald W. Van Doorn, James B. Hawkins, Francis W. Carpenter, III, Tommy W. Webb, William S. Phillips +2 more | 1984-08-07 |