Matthias; Terry R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Matthias; Terry R..The latest application filed is for "systems and methods for vapor pressure leaching polycrystalline diamond cutter elements".
- Matthias; Terry R. - Gloucester GB
- Matthias; Terry R. - Upton St. Leonards GB
- Matthias; Terry R. - Leonards GB
- Matthias; Terry R. - Longlevens GB
- Matthias; Terry R. - Abbeydale GB2
| Patent | Date |
|---|---|
| Systems and methods for vapor pressure leaching polycrystalline diamond cutter elements Grant 9,156,136 - Zhan , et al. October 13, 2 | 2015-10-13 |
| Systems and Methods for Vapor Pressure Leaching Polycrystalline Diamond Cutter Elements App 20140123565 - Zhan; Guodong ; et al. | 2014-05-08 |
| Method For Distributing Granular Components In Polycrystalline Diamond Composites App 20100014931 - Matthias; Terry R. | 2010-01-21 |
| Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength Grant 6,601,662 - Matthias , et al. August 5, 2 | 2003-08-05 |
| Method of applying a wear-resistant layer to a surface of a downhole component Grant 6,575,350 - Evans , et al. June 10, 2 | 2003-06-10 |
| Rotary drill bit Grant 6,481,511 - Matthias , et al. November 19, 2 | 2002-11-19 |
| Cutting elements for rotary drill bits Grant 6,439,327 - Griffin , et al. August 27, 2 | 2002-08-27 |
| Rotary drill bit design method Grant 6,435,058 - Matthias , et al. August 20, 2 | 2002-08-20 |
| Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength App 20020074168 - Matthias, Terry R. ; et al. | 2002-06-20 |
| Rotary drill bit design method App 20020033077 - Griffin, Nigel Dennis ; et al. | 2002-03-21 |
| Rotary drill bit App 20020033282 - Griffin, Nigel Dennis ; et al. | 2002-03-21 |
| Method of applying a wear-resistant layer to a surface of a downhole component App 20010030067 - Evans, Stephen Martin ; et al. | 2001-10-18 |
| Method of applying a wear-resistant layer to a surface of a downhole component App 20010017224 - Evans, Stephen Martin ; et al. | 2001-08-30 |
| Method of applying a wear-resistant layer to a surface of a downhole component Grant 6,234,261 - Evans , et al. May 22, 2 | 2001-05-22 |
| Preform cutting elements for rotary drag-type drill bits Grant 6,145,607 - Griffin , et al. November 14, 2 | 2000-11-14 |
| Preform cutting elements for rotary drill bits Grant 6,098,729 - Matthias August 8, 2 | 2000-08-08 |
| Elements faced with superhard material Grant 6,082,474 - Matthias July 4, 2 | 2000-07-04 |
| Manufacture of elements faced with superhard material Grant 6,011,232 - Matthias January 4, 2 | 2000-01-04 |
| Elements faced with superhard material Grant 5,862,873 - Matthias , et al. January 26, 1 | 1999-01-26 |
| Downhole components for use in subsurface drilling Grant 5,819,862 - Matthias , et al. October 13, 1 | 1998-10-13 |
| Elements faced with superhard material Grant 5,788,001 - Matthias , et al. August 4, 1 | 1998-08-04 |
| Cutting elements for rotary drill bits Grant 5,740,874 - Matthias April 21, 1 | 1998-04-21 |
| Elements faced with superhard material Grant 5,617,928 - Matthias , et al. April 8, 1 | 1997-04-08 |
| Elements faced with superhard material Grant 5,611,649 - Matthias March 18, 1 | 1997-03-18 |
| Elements faced with superhard material Grant 5,590,728 - Matthias , et al. January 7, 1 | 1997-01-07 |
| Rotary drill bits Grant 4,727,946 - Barr , et al. * March 1, 1 | 1988-03-01 |
| Rotary drill bits Grant 4,596,296 - Matthias June 24, 1 | 1986-06-24 |
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