Issued Patents All Time
Showing 51–67 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7211218 | Polycrystalline diamond carbide composites | Zhigang Fang, Brian A. White, Stewart N. Middlemiss, Ron K. Eyre | 2007-05-01 |
| 7201241 | Self relieving seal | James L. Neville, James L. Larsen, Steven W. Peterson, Manikiran Bandi, Alan W. Lockstedt +3 more | 2007-04-10 |
| 7128773 | Compositions having enhanced wear resistance | Dah-Ben Liang, Greg Lockwood | 2006-10-31 |
| 7048080 | Roller cone bits with wear and fracture resistant surface | Gregory T. Lockwood, Mohammed Boudrare, Jiaqing Yu | 2006-05-23 |
| 7036614 | Fracture and wear resistant compounds and rock bits | Dah-Ben Liang | 2006-05-02 |
| 7017677 | Coarse carbide substrate cutting elements and method of forming the same | Madapusi K. Keshavan, David Truax, Dah-Ben Liang | 2006-03-28 |
| 6976548 | Self relieving seal | James L. Neville, James L. Larsen, Steven W. Peterson, Manikiran Bandi, Alan W. Lockstedt +3 more | 2005-12-20 |
| 6951578 | Polycrystalline diamond materials formed from coarse-sized diamond grains | Daniel J. Belnap, Nathan R. Anderson, Zhigang Fang, Brian A. White | 2005-10-04 |
| 6782958 | Hardfacing for milled tooth drill bits | Dah-Ben Liang, Alysia C. White, Greg Lockwood | 2004-08-31 |
| 6745645 | Enhanced gage protection for milled tooth rock bits | — | 2004-06-08 |
| 6698098 | Cone erosion protection for roller cone drill bits | Zhigang Fang, Robert H. Slaughter, Jr. | 2004-03-02 |
| 6615935 | Roller cone bits with wear and fracture resistant surface | Zhigang Fang, Alysia C. White, Chris E. Cawthorne | 2003-09-09 |
| 6607835 | Composite constructions with ordered microstructure | Zhigang Fang, Alysia C. White | 2003-08-19 |
| 6571889 | Rotary cone bit with functionally-engineered composite inserts | Zhigang Fang, Robert Denton | 2003-06-03 |
| 6454027 | Polycrystalline diamond carbide composites | Zhigang Fang, Brian A. White, Stewart N. Middlemiss, Ron K. Eyre | 2002-09-24 |
| 6399018 | Powdered material rapid production tooling method and objects produced therefrom | Randall M. German, Timothy J. Weaver, Julian Alex Thomas, Sundar V. Atre | 2002-06-04 |
| 5602350 | Method for compacting compactable materials and improved lubricant for same | Randall M. German, Tracy J. Potter | 1997-02-11 |