Issued Patents All Time
Showing 26–50 of 95 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9222329 | Low profile, high capacity ball injector | Danny Lee Artherholt | 2015-12-29 |
| 9097369 | Threaded union for tubulars used in high-pressure fluid applications | — | 2015-08-04 |
| 9010413 | Ball drop wellhead control apparatus | Danny Lee Artherholt | 2015-04-21 |
| 9010412 | Ball drop wellhead control apparatus | — | 2015-04-21 |
| 8931551 | Multipart frac head with replaceable components | — | 2015-01-13 |
| 8869882 | Low profile, high capacity ball injector | Danny Lee Artherholt | 2014-10-28 |
| 8869883 | Horizontal frac ball injector | Danny Lee Artherholt | 2014-10-28 |
| 8839851 | Controlled apperture ball drop | Joel H. Young, Ronald B. Beason, Nicholas J. Cannon, Danny Lee Artherholt | 2014-09-23 |
| 8820400 | Erosion resistant frac head | — | 2014-09-02 |
| 8636055 | Controlled aperture ball drop | Joel H. Young, Ronald B. Beason, Nicholas J. Cannon, Danny Lee Artherholt | 2014-01-28 |
| 8567827 | Threaded union for tubulars used in high-pressure fluid applications | — | 2013-10-29 |
| 8528585 | Quick-change wear sleeve for a high-pressure fluid conduit | — | 2013-09-10 |
| 8297592 | High-pressure plug valve | L. Murray Dallas | 2012-10-30 |
| 8205916 | High-pressure threaded union with metal-to-metal seal, and metal ring gasket for same | L. Murray Dallas, Danny Lee Artherholt | 2012-06-26 |
| 8201686 | Golf bag assembly having a main bag and a removable accessory bag | — | 2012-06-19 |
| 8157005 | Casing mandrel for facilitating well completion, re-completion or workover | — | 2012-04-17 |
| 8118090 | Hybrid wellhead system and method of use | L. Murray Dallas | 2012-02-21 |
| 8113275 | Multipart frac head with replaceable components | Danny Lee Artherholt | 2012-02-14 |
| 8100185 | Multi-lock adapters for independent screwed wellheads and methods of using same | L. Murray Dallas | 2012-01-24 |
| 8100175 | Fracturing head with replaceable inserts for improved wear resistance and method of refurbishing same | L. Murray Dallas | 2012-01-24 |
| 8016031 | Erosion resistant frac head | — | 2011-09-13 |
| 7984932 | Threaded union for tubulars used in high-pressure fluid applications | — | 2011-07-26 |
| 7984758 | Multi-lock adapters for independent screwed wellheads and methods of using same | L. Murray Dallas | 2011-07-26 |
| 7967086 | Slip spool assembly and method of using same | L. Murray Dallas, Irwin Rosenhauch | 2011-06-28 |
| 7950410 | Gate valve with replaceable inserts and method of refurbishing same | L. Murray Dallas | 2011-05-31 |