Issued Patents All Time
Showing 26–50 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5379843 | Side-tracking cement plug | Vernon E. Unger | 1995-01-10 |
| 5379840 | High temperature well cementing with low grade blast furnace slag | Arthur H. Hale | 1995-01-10 |
| 5370185 | Mud solidification with slurry of portland cement in oil | Arthur H. Hale | 1994-12-06 |
| 5363918 | Wellbore sealing with unsaturated monomer system | Arthur H. Hale | 1994-11-15 |
| 5361842 | Drilling and cementing with blast furnace slag/silicate fluid | Arthur H. Hale | 1994-11-08 |
| 5361841 | Drilling and cementing with blast furnace slag/polyalcohol fluid | Arthur H. Hale | 1994-11-08 |
| 5358049 | Conversion of emulsion mud to cement | Arthur H. Hale, James J. W. Nahm | 1994-10-25 |
| 5358044 | Drilling and cementing with blast furnace slag/soluble/insoluble alcohol | Arthur H. Hale | 1994-10-25 |
| 5343947 | Anchor plug for open hole test tools | Arthur H. Hale | 1994-09-06 |
| 5343950 | Drilling and cementing extended reach boreholes | Arthur H. Hale | 1994-09-06 |
| 5343951 | Drilling and cementing slim hole wells | Arthur H. Hale | 1994-09-06 |
| 5343952 | Cement plug for well abandonment | Arthur H. Hale | 1994-09-06 |
| 5337824 | Coal slag universal fluid | — | 1994-08-16 |
| 5332040 | Process to cement a casing in a wellbore | James J. W. Nahm, Arthur H. Hale | 1994-07-26 |
| 5330006 | Oil mud displacement with blast furnace slag/surfactant | James J. W. Nahm, Reece E. Wyant | 1994-07-19 |
| 5322124 | Squeeze cementing | Arthur H. Hale | 1994-06-21 |
| 5314022 | Dilution of drilling fluid in forming cement slurries | Arthur H. Hale, James J. W. Nahm | 1994-05-24 |
| 5314031 | Directional drilling plug | Arthur H. Hale, James J. W. Nahm | 1994-05-24 |
| 5311945 | Drilling and cementing with phosphate | Arthur H. Hale | 1994-05-17 |
| 5311944 | Blast furnace slag blend in cement | Arthur H. Hale | 1994-05-17 |
| 5309999 | Cement slurry composition and method to cement wellbore casings in salt formations | Arthur H. Hale, James J. W. Nahm | 1994-05-10 |
| 5307877 | Wellbore sealing with two-component ionomeric system | Arthur H. Hale | 1994-05-03 |
| 5307876 | Method to cement a wellbore in the presence of carbon dioxide | James J. W. Nahm, Arthur H. Hale | 1994-05-03 |
| 5301754 | Wellbore cementing with ionomer-blast furnace slag system | Arthur H. Hale | 1994-04-12 |
| 5301752 | Drilling and cementing with phosphate-blast furnace slag | Arthur H. Hale | 1994-04-12 |