Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6155175 | Railroad material cart | Robert P. Rude, Zigmunt Weglarz | 2000-12-05 |
| 6138299 | Automatic futon frame | John K. Roma | 2000-10-31 |
| 6061848 | Automatic futon frame | John K. Roma | 2000-05-16 |
| 5790993 | Automatic futon frame | John K. Roma | 1998-08-11 |