Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9249656 | High precision locked laser operating at elevated temperatures | — | 2016-02-02 |
| 9151153 | Crystal sensor made by ion implantation for sensing a property of interest within a borehole in the earth | Yi Liu, Othon Do Rego Monteiro, Kerry L. Sanderlin | 2015-10-06 |
| 8692183 | Method and apparatus for estimating a downhole fluid property using a miniature integrated circuit spectrometer | — | 2014-04-08 |
| 8487238 | Method of identification of petroleum compounds using frequency mixing on surfaces | — | 2013-07-16 |
| 8358414 | Downhole sensors using manufactured anisotropic permittivity | — | 2013-01-22 |
| 8304714 | Chemical sensor using four wave mixing technique | — | 2012-11-06 |
| 8068226 | Methods and apparatus for estimating a downhole fluid property | — | 2011-11-29 |
| 7968841 | Force and acceleration sensor using four wave mixing technique | — | 2011-06-28 |
| 7954560 | Fiber optic sensors in MWD Applications | Holger Mathiszik, Volker Krueger | 2011-06-07 |
| 7907277 | Method and apparatus for downhole spectroscopy | — | 2011-03-15 |
| 7902545 | Semiconductor for use in harsh environments | — | 2011-03-08 |
| 7793543 | Method of measuring borehole gravitational acceleration | — | 2010-09-14 |
| 7796263 | Method and apparatus for determining fluid content downhole | — | 2010-09-14 |
| 7782460 | Laser diode array downhole spectrometer | Rocco DiFoggio | 2010-08-24 |
| 7751044 | Optical sensors for downhole measurements using birefringent materials | — | 2010-07-06 |
| 7638761 | High temperature downhole tool | — | 2009-12-29 |
| 7598485 | Temperature and pressure sensor using four wave mixing technique | — | 2009-10-06 |
| 6759675 | Optical device and method therefor | Wei Wu | 2004-07-06 |
| 6656761 | Method for forming a semiconductor device for detecting light | Burt Fowler | 2003-12-02 |
| 6633716 | Optical device and method therefor | — | 2003-10-14 |
| 6616854 | Method of bonding and transferring a material to form a semiconductor device | Robert E. Jones | 2003-09-09 |
| 6594422 | Opto-coupling device structure and method therefor | William J. Taylor, Jr., Wei Wu | 2003-07-15 |