Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10801265 | Combination coring machine and vacuum excavation rig | Ronald Lyon, Carl Brunner | 2020-10-13 |
| 8720466 | Process for accessing underground pressurized gas main | Robert Bentzoni, Lawrence Dowling, Stephen Karner | 2014-05-13 |
| 7241084 | Tool assembly with universal coupling for various tools, for work on underground pipes | William M. Hutton | 2007-07-10 |
| 7018137 | Apparatus and process for installing “T” couplings on underground pipe | William M. Hutton | 2006-03-28 |
| 6669406 | Method and apparatus for underground connection of pipe | William M. Hutton, John K. Gilday, Michael G. Palmer | 2003-12-30 |
| 6618966 | Fluid lance apparatus | William M. Hutton, Jeffery Bond, John K. Gilday | 2003-09-16 |
| 4308736 | Tube expander | Jerome R. Lowe | 1982-01-05 |
| 4198844 | Tube expander | Jerome R. Lowe | 1980-04-22 |