Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8185989 | Bridge deploying apparatus and bridge transporting vehicle incorporating such apparatus | — | 2012-05-29 |
| 6435772 | Submarine plough | — | 2002-08-20 |
| 5445493 | Apparatus for palletizing/unitizing easily compressible products | Ray A. Yourgalite, Kenneth F. Becicka, Jay A. Dark, Robert J. Kleber | 1995-08-29 |
| 4997331 | Aircraft ground handling vehicle | Timothy William Grinsted | 1991-03-05 |
| 4896998 | Submarine cable plough | — | 1990-01-30 |
| 4802793 | Pipeline or cable plough | Timothy William Grinsted | 1989-02-07 |
| 4664553 | Plough assembly | Timothy William Grinsted | 1987-05-12 |
| 4655639 | Plough | — | 1987-04-07 |
| 4585372 | Pipeline plough with lifting assemblies | Timothy Grinstead | 1986-04-29 |
| 4539765 | Trench backfill device | — | 1985-09-10 |
| 4428132 | Trenching plow with plow carriage on curved supporting track | — | 1984-01-31 |
| 4329793 | Soil moving device | — | 1982-05-18 |