Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6668474 | Outdoor sign apparatus for real estate or other advertising purposes | Porter J. Martin | 2003-12-30 |
| 5461995 | Rotary row cleaner with reversible spring | — | 1995-10-31 |
| 5341754 | Rotary row cleaner for a planter | — | 1994-08-30 |
| 4434991 | Tank carrier | — | 1984-03-06 |