Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11137334 | Systems and methods for fracture face formation permeability measurements | Oya Aysen Karazincir, Yan Li, Karim Shafik Zaki, Wade H. Williams, Ruiting Wu +2 more | 2021-10-05 |
| 9243451 | System and method for pre-conditioning a hydrate reservoir | John T. Balczewski | 2016-01-26 |
| 7991554 | Method for predicting rate of penetration using bit-specific coefficients of sliding friction and mechanical efficiency as a function of confined compressive strength | William Malcolm Calhoun, Hector Ulpiano Caicedo | 2011-08-02 |
| 7555414 | Method for estimating confined compressive strength for rock formations utilizing skempton theory | William Malcolm Calhoun | 2009-06-30 |
| 7412331 | Method for predicting rate of penetration using bit-specific coefficient of sliding friction and mechanical efficiency as a function of confined compressive strength | William Malcolm Calhoun, Hector Ulpiano Caicedo | 2008-08-12 |
| 5435187 | End-cap-to-piston coupling for triaxial test apparatus | Ronald P. Steiger, Rudolf J. Stankovich | 1995-07-25 |