Hoffmaster; Carl M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hoffmaster; Carl M..The latest application filed is for "gouging cutter drill bit".
- Hoffmaster; Carl M. - Houston TX
| Patent | Date |
|---|---|
| Gouging Cutter Drill Bit App 20210332646 - Herman; John James ; et al. | 2021-10-28 |
| Wellbore reaming tool having shear cutters and gouging cutters Grant 10,570,664 - Herman , et al. Feb | 2020-02-25 |
| Wellbore Reaming Tool Having Shear Cutters And Gouging Cutters App 20190040687 - Herman; John James ; et al. | 2019-02-07 |
| Wellbore mill having shear cutters and gouging cutters Grant 9,951,563 - Beaton , et al. April 24, 2 | 2018-04-24 |
| Wellbore Mill Having Shear Cutters And Gouging Cutters App 20160265281 - Beaton; Timothy P. ; et al. | 2016-09-15 |
| Drill bit cutting structure and methods to maximize depth-of-cut for weight on bit applied Grant 9,016,407 - Durairajan , et al. April 28, 2 | 2015-04-28 |
| Cutters For Fixed Cutter Bits App 20150047913 - Durairajan; Bala ; et al. | 2015-02-19 |
| Cutters for fixed cutter bits Grant 8,833,492 - Durairajan , et al. September 16, 2 | 2014-09-16 |
| Cutter geometry for high ROP applications Grant 8,783,387 - Durairajan , et al. July 22, 2 | 2014-07-22 |
| Drill bit having enhanced stabilization features and method of use thereof Grant 8,689,908 - Durairajan , et al. April 8, 2 | 2014-04-08 |
| Fixed Cutter Drill Bit Heel And Back-ream Cutter Protections For Abrasive Applications App 20130153306 - BURHAN; YURI ; et al. | 2013-06-20 |
| Drill Bit Having Enhanced Stabilization Features and Method of Use Thereof App 20120186879 - Durairajan; Bala ; et al. | 2012-07-26 |
| Drill bit having enhanced stabilization features and method of use thereof Grant 8,127,863 - Durairajan , et al. March 6, 2 | 2012-03-06 |
| Fixed cutter bit with backup cutter elements on secondary blades Grant 8,100,202 - Durairajan , et al. January 24, 2 | 2012-01-24 |
| Fixed cutter bit with backup cutter elements on primary blades Grant 7,703,557 - Durairajan , et al. April 27, 2 | 2010-04-27 |
| Cutters For Fixed Cutter Bits App 20100084198 - Durairajan; Bala ; et al. | 2010-04-08 |
| Cutter Geometry For High Rop Applications App 20100059287 - Durairajan; Bala ; et al. | 2010-03-11 |
| Pdc Bit Having Split Blades App 20100018780 - Johnson; Geoffrey M. ; et al. | 2010-01-28 |
| Drag bits with dropping tendencies and methods for making the same Grant 7,621,348 - Hoffmaster , et al. November 24, 2 | 2009-11-24 |
| Fixed Cutter Bit With Backup Cutter Elements on Secondary Blades App 20090266619 - Durairajan; Bala ; et al. | 2009-10-29 |
| Drill Bit Having Enhanced Stabilization Features App 20090145663 - Durairajan; Bala ; et al. | 2009-06-11 |
| Drill Bit Cutting Structure and Methods to Maximize Depth-0f-Cut For Weight on Bit Applied App 20090145669 - Durairajan; Bala ; et al. | 2009-06-11 |
| Fixed Cutter Bit With Backup Cutter Elements on Primary Blades App 20080302575 - Durairajan; Bala ; et al. | 2008-12-11 |
| Advanced expandable reaming tool Grant 7,451,837 - Hoffmaster , et al. November 18, 2 | 2008-11-18 |
| Advanced expandable reaming tool Grant 7,451,836 - Hoffmaster , et al. November 18, 2 | 2008-11-18 |
| Drag Bits with Dropping Tendencies and Methods for Making the Same App 20080105466 - Hoffmaster; Carl M. ; et al. | 2008-05-08 |
| Advanced expandable reaming tool Grant 6,880,650 - Hoffmaster , et al. April 19, 2 | 2005-04-19 |
| Advanced expandable reaming tool App 20040159468 - Hoffmaster, Carl M. ; et al. | 2004-08-19 |
| Advanced expandable reaming tool App 20040154836 - Hoffmaster, Carl M. ; et al. | 2004-08-12 |
| Advanced expandable reaming tool App 20030029644 - Hoffmaster, Carl M. ; et al. | 2003-02-13 |
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