Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12390774 | Rotating vacuum tank and method | — | 2025-08-19 |
| 12291967 | Method for forming underground flowlines with electronic tracking | — | 2025-05-06 |
| 12291924 | Excavation boring and shoring tool | — | 2025-05-06 |
| 12201953 | Rotating vacuum tank and method | — | 2025-01-21 |
| 11988044 | Excavation boring and shoring method and equipment | — | 2024-05-21 |
| 11760034 | Locking flush joint pipe connection and method | — | 2023-09-19 |
| 10786839 | Internal pipe cleaning tool and method | — | 2020-09-29 |
| 10557587 | Pipe replacement tool and method | — | 2020-02-11 |
| 8641326 | Method of replacing an underground pipe section | — | 2014-02-04 |
| 8365841 | Sectional back reamer apparatus and method for horizontal directional drilling | — | 2013-02-05 |
| 7674072 | Connection between a lateral and main pipe and method for making same | William E. Shook | 2010-03-09 |
| 7581600 | Method of forming a trenchless flowline | — | 2009-09-01 |
| 7287337 | Pitch sensing in drilling machines | — | 2007-10-30 |
| 6827158 | Two-pipe on-grade directional boring tool and method | Paul W. Knecht | 2004-12-07 |
| 6732816 | Method of forming a trenchless flowline | — | 2004-05-11 |