Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8100179 | Production and delivery of a fluid mixture to an annular volume of a wellbore | Robert E. Hermes, Ron Lee Foley, James B. Bloys, Manuel E. Gonzalez, John Daniel +2 more | 2012-01-24 |
| 7989398 | Pumpable multiple phase compositions for controlled release applications downhole | Lirio Quintero | 2011-08-02 |
| 7926588 | Optimizing drilling performance using a selected drilling fluid | Arnis Judzis, Alan D. Black, Sidney J. Green, Homer A. Robertson, David A. Curry +1 more | 2011-04-19 |
| 7354886 | Pumpable multiple phase compositions for controlled release applications downhole | Lirio Quintero | 2008-04-08 |
| 7050166 | Calcium carbonate imaging technique | Tom A. Jones | 2006-05-23 |
| 6703351 | Water-based drilling fluids using latex additives | Calvin J. Stowe, II, Dennis K. Clapper, Tao Xiang, Saddock Benaissa | 2004-03-09 |
| 6464009 | Pumpable multiple phase compositions for controlled release applications downhole | Lirio Quintero | 2002-10-15 |
| 6284714 | Pumpable multiple phase compositions for controlled release applications downhole | Lirio Quintero | 2001-09-04 |
| 6176323 | Drilling systems with sensors for determining properties of drilling fluid downhole | John B. Weirich, William Smith, Volker Krueger, John W. Harrell, Hatem Nasr +1 more | 2001-01-23 |
| 6165945 | Blends of glycol derivatives as gas hydrate inhibitors in water base drilling, drill-in, and completion fluids | William S. Halliday, Dennis K. Clapper, Mark R. Smalling | 2000-12-26 |
| 6054416 | Drilling fluids comprising biodegradable heteropolyglycols | — | 2000-04-25 |
| 5945386 | Glycol and glycol ether lubricants and spotting fluids | Maria Alonso-DeBolt, Bong Jin Chai, Peter B. Eichelberger, Eugene A. Elphingstone | 1999-08-31 |
| 5919738 | Fluids for use in drilling and completion operations comprising water insoluble colloidal complexes for improved rheology and filtration control | James Norfleet, Michael A. Jarrett, William M. Dye, Dennis K. Clapper, Geoffrey Robinson +2 more | 1999-07-06 |
| 5141920 | Hydrocarbon invert emulsions for use in well drilling operations | Dennis K. Clapper | 1992-08-25 |
| 5110484 | Drilling fluid with stabilized browning reaction anionic carbohydrate | Jim J. Sheu | 1992-05-05 |
| 5106517 | Drilling fluid with browning reaction anionic carbohydrate | Jim J. Sheu | 1992-04-21 |
| 5057234 | Non-hydrocarbon invert emulsions for use in well drilling operations | Dennis K. Clapper | 1991-10-15 |