Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7927059 | Pipeline padding machine with a debris-resistant escalator assembly | Ricky L. Layh | 2011-04-19 |
| 7886463 | Pipeline padding machine | Evan S. Greenberg | 2011-02-15 |
| 5992655 | Caterpillar sideboom replacement assembly | Alan Greenberg | 1999-11-30 |