Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12370513 | Batch processing of material collected by a vacuum excavation unit | — | 2025-07-29 |
| 12000216 | Horizontal directional drill string having dual fluid paths | — | 2024-06-04 |
| 11613947 | Drill pipe with internal flow check valve | — | 2023-03-28 |
| 11530605 | Horizontal directional drilling crossbore detector | Richard F. Sharp, Arun Prakash Jaganathan, David Edward Hall, Neven Simicevic | 2022-12-20 |
| 11401750 | Telemetry pipe system | — | 2022-08-02 |
| 11225840 | Horizontal directional drill string having dual fluid paths | — | 2022-01-18 |
| 10851599 | Horizontal directional drill pipe drive connection with locking feature | Greg L. Slaughter, Jr., Max A. Metcalf | 2020-12-01 |
| 10619420 | Reamer with replaceable rolling cutters | — | 2020-04-14 |
| 9834995 | Horizontal directional drill pipe drive connection with locking feature | Greg L. Slaughter, Jr., Max A. Metcalf | 2017-12-05 |
| 9828805 | Reamer with replaceable cutters | — | 2017-11-28 |
| 9714544 | Reamer with replaceable rolling cutters | — | 2017-07-25 |
| 9206851 | Horizontal directional drill pipe drive connection with locking feature | Greg L. Slaughter, Jr., Max A. Metcalf | 2015-12-08 |
| 9182513 | Determining beacon location using magnetic field shape measurements | Michael F. Gard, Kody D. Mason | 2015-11-10 |
| 8191653 | System and method for tracking and maintaining an on-grade horizontal borehole | Brian K. Bailey, Scott B. Cole, Kelvin P. Self, Gerald A. Stangl | 2012-06-05 |
| 7896107 | System for tracking and maintaining on on-grade horizontal borehole | Brian K. Bailey, Scott B. Cole, Kelvin P. Self, Gerald A. Stangl | 2011-03-01 |
| 7663373 | Determining beacon location using magnetic field ratios | Michael F. Gard, Kody D. Mason | 2010-02-16 |
| 7654340 | Directional reaming system | Kelvin P. Self, H. Stanley Mullins, Gerald A. Stangl, David R. Payne | 2010-02-02 |
| 7624816 | Configurable beacon and method | Scott B. Cole, Michael Campbell | 2009-12-01 |
| 7528946 | System for detecting deflection of a boring tool | — | 2009-05-05 |
| 7510029 | System for tracking and maintaining an on-grade horizontal borehole | Brian K. Bailey, Scott B. Cole, Kelvin P. Self, Gerald A. Stangl | 2009-03-31 |
| 7389831 | Dual-member auger boring system | H. Stanley Mullins, Jerry W. Beckwith, Kelvin P. Self, Brent G. Stephenson | 2008-06-24 |
| 7353889 | Rotary driven pipe-bursting tool | Kelvin P. Self | 2008-04-08 |
| 7331409 | Configurable beacon and method | Scott B. Cole, Michael Campbell | 2008-02-19 |
| 7216724 | Coupling for dual member pipe | Kelvin P. Self, David R. Payne | 2007-05-15 |
| 7195079 | Directional reaming system | Kelvin P. Self, H. Stanley Mullins, Gerald A. Stangl, David R. Payne | 2007-03-27 |