Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9157283 | Downhole tools having features for reducing balling, and methods of forming such tools | Chaitanya K. Vempati, Steven R. Radford, Timothy K. Marvel, Bruce Stauffer, George I. Butler | 2015-10-13 |
| 9145603 | Methods of attaching a polycrystalline diamond compact to a substrate | Chaitanya K. Vempati | 2015-09-29 |
| 9115554 | Earth-boring tools including replaceable cutting structures and related methods | Chaitanya K. Vempati, Timothy K. Marvel | 2015-08-25 |
| 9068408 | Methods of forming earth-boring tools and related structures | Chaitanya K. Vempati | 2015-06-30 |
| 8991525 | Earth-boring tools having cutting elements with cutting faces exhibiting multiple coefficients of friction, and related methods | Juan Miguel Bilen, Anthony A. DiGiovanni, Chih Lin, Rudolf Carl Pessier, Danny E. Scott +1 more | 2015-03-31 |
| 8985244 | Downhole tools having features for reducing balling and methods of forming such tools | Chaitanya K. Vempati, Steven R. Redford, Timothy K. Marvel, Bruce Stauffer, George I. Butler | 2015-03-24 |
| 8978788 | Cutting element for a drill bit used in drilling subterranean formations | Chaitanya K. Vempati, Jack T. Oldham, Danielle M. Fuselier, Jim Powers, Nicholas J. Lyons | 2015-03-17 |
| 8911522 | Methods of forming inserts and earth-boring tools | Christopher J. Cleboski, Danny E. Scott, L. Allen Sinor | 2014-12-16 |
| 8887839 | Drill bit for use in drilling subterranean formations | Chaitanya K. Vempati, Jack T. Oldham, Edwin R Reek, Danielle M. Fuselier, Robert A. Laing | 2014-11-18 |
| 8851206 | Oblique face polycrystalline diamond cutter and drilling tools so equipped | — | 2014-10-07 |
| 8739904 | Superabrasive cutters with grooves on the cutting face, and drill bits and drilling tools so equipped | — | 2014-06-03 |
| 8528661 | Drill bit with electrical power generation devices | Clifton N. B. Triplett | 2013-09-10 |
| 8327955 | Non-parallel face polycrystalline diamond cutter and drilling tools so equipped | — | 2012-12-11 |
| 8127869 | Earth-boring tools, methods of making earth-boring tools and methods of drilling with earth-boring tools | Chaitanya K. Vempati, Jack T. Oldham, Danielle M. Fuselier | 2012-03-06 |
| 8096373 | Rotary drill bits and drilling tools having protective structures on longitudinally trailing surfaces | Ben L. Kirkpatrick, Scott E. Mayer | 2012-01-17 |
| 8087478 | Cutting elements including cutting tables with shaped faces configured to provide continuous effective positive back rake angles, drill bits so equipped and methods of drilling | — | 2012-01-03 |
| 8061456 | Chamfered edge gage cutters and drill bits so equipped | Danny E. Scott, L. Allen Sinor | 2011-11-22 |
| 7814998 | Superabrasive cutting elements with enhanced durability and increased wear life, and drilling apparatus so equipped | Mathews George, Richard J. McClellan, Paul E. Pastusek, Innocent R. Rugashoborola, Nicholas J. Lyons | 2010-10-19 |
| 7770671 | Nozzle having a spray pattern for use with an earth boring drill bit | — | 2010-08-10 |
| 6722559 | Apparatus and method for mitigating wear in downhole tools | Ian Millar | 2004-04-20 |
| 5152403 | Treatment of seawater evaporator aqueous systems with scale-inhibiting mixture of polymaleic anhydride and a carboxyl-containing acrylic polymer | — | 1992-10-06 |
| 5135661 | Process for treating water or aqueous systems | — | 1992-08-04 |