Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8819498 | Fault-based unit replacement | Stephen John Abbott, Lee Paul Monahan | 2014-08-26 |
| 7676172 | Cleaning head pick-up system | Benjamin Budding, Stephen P. Wood, Christopher D. Olliffe, Christopher Sneath | 2010-03-09 |