Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10900290 | Fixed cutter completions bit | Johnathan Howard, Matthew Charles Stroever, Jeffery L. Johnson | 2021-01-26 |
| 9708858 | Methods to repair worn or eroded PDC cutters, cutters so repaired, and use of repaired PDC cutters in drill bits or other tools | William W. King, Gary M. Thigpen, Federico Bellin, Marvin Windsor Amundsen | 2017-07-18 |
| 9481057 | Method for applying hardfacing to a matrix substrate of a drill bit | Marvin Windsor Amundsen | 2016-11-01 |
| 9435158 | Use of tungsten carbide tube rod to hard-face PDC matrix | — | 2016-09-06 |
| 9375827 | Methods to repair worn or eroded PDC cutters, cutters so repaired, and use of repaired PDC cutters in drill bits or other tools | Marvin Windsor Amundsen | 2016-06-28 |
| 9289864 | Method for repairing or reinforcing cutter pockets of a drill bit | Marvin Windsor Amundsen | 2016-03-22 |
| 6928314 | System for two-dimensional and three-dimensional imaging of tubular structures in the human body | Judd Reed | 2005-08-09 |
| 5891030 | System for two dimensional and three dimensional imaging of tubular structures in the human body | Amy Kiyo Hara, Judd Reed | 1999-04-06 |
| 5485859 | Dishwashing aid for the handicapped | Debra L. Johnson | 1996-01-23 |