Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4742825 | Adjustable compress apparatus | Robert F. Freund, Lawrence J. Richards | 1988-05-10 |
| 4573641 | Glass bottle collection and crushing apparatus | Bruce H. DeWoolfson, Robert F. Freund | 1986-03-04 |
| 4469212 | Container collection apparatus with piston-actuated crusher | Bruce H. DeWoolfson, Robert F. Freund | 1984-09-04 |