Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10508323 | Method and apparatus for securing bodies using shape memory materials | Steven Craig Russell, Juan Miguel Bilen, Bo Yu, Kenneth R. Evans, Xu Huang +2 more | 2019-12-17 |
| 8172008 | Drilling apparatus with reduced exposure of cutters and methods of drilling | Mark W. Dykstra, William Heuser, Michael L. Doster, Theodore E. Zaleski, Jr., Jack T. Oldham +3 more | 2012-05-08 |
| 8066084 | Drilling apparatus with reduced exposure of cutters and methods of drilling | Mark W. Dykstra, William Heuser, Michael L. Doster, Theodore E. Zaleski, Jr., Jack T. Oldham +3 more | 2011-11-29 |
| 7861806 | Shank structure for rotary drill bits | Anton F. Zahradnik, Eric C. Sullivan, R. Scot Smith, Danielle V. Roberts, Alan J. Massey | 2011-01-04 |
| 7814990 | Drilling apparatus with reduced exposure of cutters and methods of drilling | Mark W. Dykstra, William Heuser, Michael L. Doster, Theodore E. Zaleski, Jr., Jack T. Oldham +3 more | 2010-10-19 |
| 7600589 | Rotary drill bits | Anton F. Zahradnik, Eric C. Sullivan, R. Scot Smith, Danielle V. Roberts, Alan J. Massey | 2009-10-13 |
| 7594454 | Methods of fabricating rotary drill bits | Anton F. Zahradnik, Eric C. Sullivan, R. Scot Smith, Danielle V. Roberts, Alan J. Massey | 2009-09-29 |
| 7472764 | Rotary drill bit shank, rotary drill bits so equipped, and methods of manufacture | Anton F. Zahradnik, Eric C. Sullivan, R. Scot Smith, Danielle V. Roberts, Alan J. Massey | 2009-01-06 |
| 7096978 | Drill bits with reduced exposure of cutters | Mark W. Dykstra, William Heuser, Michael L. Doster, Theodore E. Zaleski, Jr., Jack T. Oldham +3 more | 2006-08-29 |
| 7066280 | Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations | Eric C. Sullivan, Theodore E. Zaleski, Jr., Scott Ray Schmidt, Don Q. Nguyen, Glenn R. Zadrapa +1 more | 2006-06-27 |
| 6935441 | Drill bits with reduced exposure of cutters | Mark W. Dykstra, William Heuser, Michael L. Doster, Theodore E. Zaleski, Jr., Jack T. Oldham +3 more | 2005-08-30 |
| 6779613 | Drill bits with controlled exposure of cutters | Mark W. Dykstra, William Heuser, Michael L. Doster, Theodore E. Zaleski, Jr., Jack T. Oldham +3 more | 2004-08-24 |
| 6571886 | Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations | Eric C. Sullivan, Theodore E. Zaleski, Jr., Scott Ray Schmidt, Don Q. Nguyen, Glenn R. Zadrapa +1 more | 2003-06-03 |
| 6460631 | Drill bits with reduced exposure of cutters | Mark W. Dykstra, William Heuser, Michael L. Doster, Theodore E. Zaleski, Jr., Jack T. Oldham +3 more | 2002-10-08 |
| 6098728 | Rock bit nozzle arrangement | Jennifer Ann Wells, Wayne Lee Baker, Christopher S. Charles, James L. Duggan, Thomas John Gottschalk +2 more | 2000-08-08 |