Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5580113 | Remote control crane/load safety shackle | Ronald L. Williams, Joseph E. Kauffman | 1996-12-03 |
| 5297920 | Apparatus and method for removing ballast stones from a roof | Mathew J. Pacek, Joseph E. Kauffman | 1994-03-29 |
| 4787111 | Selectively-retractable elevated walkway extension | Mathew J. Pacek | 1988-11-29 |