Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12084919 | Hybrid bit | Venkatesh Karuppiah | 2024-09-10 |
| 12065883 | Hybrid bit | Venkatesh Karuppiah, Mahesha Kumar, Shelton W. Alsup | 2024-08-20 |
| 11136830 | Downhole tools with variable cutting element arrays | Craig A. Raisanen | 2021-10-05 |
| 10767420 | Roller cone drill bit with evenly loaded cutting elements | Joshua Gatell | 2020-09-08 |
| 10731422 | Hybrid cutting structures with blade undulations | Michael G. Azar | 2020-08-04 |
| 10145180 | Hybrid cutting structures with blade undulations | Michael G. Azar | 2018-12-04 |
| 8991523 | Rolling cutter assembled directly to the bit pockets | Yuelin Shen, Youhe Zhang, Yuri Burhan, Michael A. Siracki, Mahavir Nagaraj +2 more | 2015-03-31 |
| 8205692 | Rock bit and inserts with a chisel crest having a broadened region | Brandon M. Moss, James C. Minikus | 2012-06-26 |
| 7950476 | Drill bit and cutter element having chisel crest with protruding pilot portion | Amardeep Singh | 2011-05-31 |
| 7798255 | Drill bits having optimized cutting element counts for reduced tracking and/or increased drilling performance | Joshua Gatell, Amardeep Singh, Mohammed Boudrare, Bryce Baker, Allen D. White +2 more | 2010-09-21 |
| 7743857 | Cutting elements of gage row and first inner row of a drill bit | Alan W. Lockstedt, Gary R. Portwood | 2010-06-29 |
| 7721824 | Multiple inserts of different geometry in a single row of a bit | Amardeep Singh | 2010-05-25 |
| 7690446 | Single cone rock bit having inserts adapted to maintain hole gage during drilling | George Witman, Peter Wilson, Michael A. Siracki | 2010-04-06 |
| 7686104 | Rolling cone drill bit having cutter elements positioned in a plurality of differing radial positions | Amardeep Singh, Joshua Gatell, Mohammed Boudrare, Bryce Baker, Parveen K. Chandila +2 more | 2010-03-30 |
| 7631709 | Drill bit and cutter element having chisel crest with protruding pilot portion | Amardeep Singh | 2009-12-15 |
| 7571083 | Method of designing a drill bit, and bits made using said method | Amardeep Singh, Sujian Huang | 2009-08-04 |
| 7549490 | Arrangement of roller cone inserts | Amardeep Singh | 2009-06-23 |
| 7401668 | Single cone rock bit having inserts adapted to maintain hole gage during drilling | George Witman, Peter Wilson, Michael A. Siracki | 2008-07-22 |
| 7377332 | Multiple inserts of different geometry in a single row of a bit | Amardeep Singh | 2008-05-27 |
| 7377340 | Drill bit cutting elements with selectively positioned wear resistant surface | — | 2008-05-27 |
| 7367413 | Cutting elements of gage row and first inner row of a drill bit | Alan W. Lockstedt, Gary R. Portwood | 2008-05-06 |
| 7302374 | Method of designing a drill bit, and bits made using said method | Amardeep Singh, Sujian Huang | 2007-11-27 |
| 7292967 | Methods for evaluating cutting arrangements for drill bits and their application to roller cone drill bit designs | Amardeep Singh, Daniel W. Brietzke | 2007-11-06 |
| 7234549 | Methods for evaluating cutting arrangements for drill bits and their application to roller cone drill bit designs | Amardeep Singh, Daniel W. Brietzke | 2007-06-26 |
| 7195078 | Multiple inserts of different geometry in a single row of a bit | Amardeep Singh | 2007-03-27 |