Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8056985 | Vibratory machine | Jing James Yao, Robert E. Able | 2011-11-15 |
| 7828393 | Continuous vibratory milling machine | Jing James Yao, Robert E. Able | 2010-11-09 |
| 7434890 | Vibratory milling machine having linear reciprocating motion | Jing James Yao, Robert E. Able | 2008-10-14 |
| 6921230 | Closed loop control system for pavement surfacing machine | — | 2005-07-26 |
| 6615931 | Continuous feed drilling system | William V. Dycus | 2003-09-09 |
| 6186248 | Closed loop control system for diamond core drilling | Raymond B. McKinley | 2001-02-13 |
| 4588231 | Pavement surfacing machine | James Samuel Stein, John J. Kunzweiler | 1986-05-13 |