Issued Patents 2011
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 7946558 | High-pressure plug valve | L. Murray Dallas | 2011-05-24 |
| 7934546 | Fracturing head with replaceable inserts for improved wear resistance and method of refurbishing same | L. Murray Dallas | 2011-05-03 |
| 7922216 | High-pressure threaded union with metal-to-metal seal, and metal ring gasket for same | L. Murray Dallas, Danny Lee Artherholt | 2011-04-12 |
| 7921923 | Casing mandrel for facilitating well completion, re-completion or workover | — | 2011-04-12 |
| 7905293 | Hybrid wellhead system and method of use | L. Murray Dallas | 2011-03-15 |
| 7886833 | System and method for low-pressure well completion | L. Murray Dallas | 2011-02-15 |