Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12006799 | Continuous circulating concentric casing managed equivalent circulating density (ECD) drilling for methane gas recovery from coal seams | — | 2024-06-11 |
| 11203921 | Continuous circulating concentric casing managed equivalent circulating density (ECD) drilling for methane gas recovery from coal seams | — | 2021-12-21 |
| 10480292 | Continuous circulating concentric casing managed equivalent circulating density (ECD) drilling for methane gas recovery from coal seams | — | 2019-11-19 |
| 9732594 | Continuous circulating concentric casing managed equivalent circulating density (ECD) drilling for methane gas recovery from coal seams | — | 2017-08-15 |
| 7681639 | Process to increase the area of microbial stimulation in methane gas recovery in a multi seam coal bed/methane dewatering and depressurizing production system through the use of horizontal or multilateral wells | — | 2010-03-23 |
| 7243738 | Multi seam coal bed/methane dewatering and depressurizing production system | — | 2007-07-17 |
| 7185718 | Method and system for hydraulic friction controlled drilling and completing geopressured wells utilizing concentric drill strings | — | 2007-03-06 |
| 6923275 | Multi seam coal bed/methane dewatering and depressurizing production system | — | 2005-08-02 |
| 6745855 | Method and system for hydraulic friction controlled drilling and completing geopressured wells utilizing concentric drill strings | — | 2004-06-08 |
| 6457540 | Method and system for hydraulic friction controlled drilling and completing geopressured wells utilizing concentric drill strings | — | 2002-10-01 |
| 6065550 | Method and system for drilling and completing underbalanced multilateral wells utilizing a dual string technique in a live well | — | 2000-05-23 |
| 5863283 | System and process for disposing of nuclear and other hazardous wastes in boreholes | — | 1999-01-26 |
| 5720356 | Method and system for drilling underbalanced radial wells utilizing a dual string technique in a live well | — | 1998-02-24 |
| 5680901 | Radial tie back assembly for directional drilling | — | 1997-10-28 |
| 5394950 | Method of drilling multiple radial wells using multiple string downhole orientation | — | 1995-03-07 |
| 4599172 | Flow line filter apparatus | — | 1986-07-08 |
| 4410425 | Flow line filter apparatus | — | 1983-10-18 |