Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1071626 | Folding table | — | 2025-04-22 |
| 8561730 | Foot valve assembly for a down hole drill | Paul Campbell, William H. Dell, II, Dale R. Wolfer, Timothy J. Plunkett | 2013-10-22 |
| 8079647 | Vibratory milling machine having linear reciprocating motion | Robert E. Able, Thomas J. Oothoudt | 2011-12-20 |
| 8056985 | Vibratory machine | Robert E. Able, Louis E. Silay | 2011-11-15 |
| 7954566 | Stabilizer for drill strings | — | 2011-06-07 |
| 7900719 | Bi-steel percussive drill rod | — | 2011-03-08 |
| 7828393 | Continuous vibratory milling machine | Robert E. Able, Louis E. Silay | 2010-11-09 |
| 7434890 | Vibratory milling machine having linear reciprocating motion | Robert E. Able, Louis E. Silay | 2008-10-14 |