Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8191653 | System and method for tracking and maintaining an on-grade horizontal borehole | Floyd R. Gunsaulis, Brian K. Bailey, Scott B. Cole, Kelvin P. Self | 2012-06-05 |
| 7896107 | System for tracking and maintaining on on-grade horizontal borehole | Floyd R. Gunsaulis, Brian K. Bailey, Scott B. Cole, Kelvin P. Self | 2011-03-01 |
| 7654340 | Directional reaming system | Kelvin P. Self, Floyd R. Gunsaulis, H. Stanley Mullins, David R. Payne | 2010-02-02 |
| 7510029 | System for tracking and maintaining an on-grade horizontal borehole | Floyd R. Gunsaulis, Brian K. Bailey, Scott B. Cole, Kelvin P. Self | 2009-03-31 |
| 7373993 | System and method for locating and tracking a boring tool | Kelvin P. Self | 2008-05-20 |
| 7195079 | Directional reaming system | Kelvin P. Self, Floyd R. Gunsaulis, H. Stanley Mullins, David R. Payne | 2007-03-27 |
| 7111693 | System and method for locating and tracking a boring tool | Kelvin P. Self | 2006-09-26 |
| 4907658 | Percussive mole boring device with electronic transmitter | Douglas W. Lee, Dirk A. Wilson | 1990-03-13 |
| 4834193 | Earth boring apparatus and method with control valve | Curtis E. Leitko, Jr., Michael R. Wasson, Douglas W. Lee | 1989-05-30 |