Issued Patents All Time
Showing 101–125 of 179 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7852468 | Fiber optic refractometer | — | 2010-12-14 |
| 7826050 | System and method for dual path length optical analysis of fluids downhole | Paul Bergren, Francisco Galvan-Sanchez, Daniel T. Georgi | 2010-11-02 |
| 7814782 | Downhole gas detection in drilling muds | — | 2010-10-19 |
| 7817285 | Downhole uses of pressure-tuned semiconductor light sources | — | 2010-10-19 |
| 7782460 | Laser diode array downhole spectrometer | Sebastian Csutak | 2010-08-24 |
| 7763845 | Downhole navigation and detection system | Robert A. Estes, Eric Molz, Constantyn Chalitsios, Philip L. Kurkoski | 2010-07-27 |
| 7719676 | Downhole laser measurement system and method of use therefor | — | 2010-05-18 |
| 7707883 | Apparatus and method for improved light source and light detector for gravimeter | — | 2010-05-04 |
| 7703328 | Pressure sensor utilizing a low thermal expansion material | — | 2010-04-27 |
| 7694734 | Method and apparatus for insulating a resonator downhole | Christopher Powell, Peter W. Reittinger, Louis Perez, Srdjan Stankovic, Paul Bergren | 2010-04-13 |
| 7671983 | Method and apparatus for an advanced optical analyzer | Michael Shammai, Robert Gordon | 2010-03-02 |
| 7669469 | Method and apparatus for a continuous data recorder for a downhole sample tank | Michael Shammai, Francisco Sanchez, James T. Cernosek | 2010-03-02 |
| 7647979 | Downhole electrical power generation based on thermo-tunneling of electrons | Frederick E. Shipley | 2010-01-19 |
| 7614302 | Acoustic fluid analysis method | Paul Bergren, Jun-Soo Han | 2009-11-10 |
| 7595876 | Method and apparatus for estimating a property of a fluid downhole | — | 2009-09-29 |
| 7576856 | Method and apparatus for estimating a property of a fluid downhole | — | 2009-08-18 |
| 7571770 | Downhole cooling based on thermo-tunneling of electrons | Frederick E. Shipley | 2009-08-11 |
| 7559358 | Downhole uses of electroactive polymers | Nigel Ryder | 2009-07-14 |
| 7540165 | Downhole sorption cooling and heating in wireline logging and monitoring while drilling | Paul Bergren | 2009-06-02 |
| 7530265 | Method and apparatus for elemental analysis of a fluid downhole | — | 2009-05-12 |
| 7523640 | Acoustic fluid analyzer | Weimin Yao | 2009-04-28 |
| 7520158 | Method and apparatus for reservoir characterization using photoacoustic spectroscopy | — | 2009-04-21 |
| 7516655 | Downhole fluid characterization based on changes in acoustic properties with pressure | — | 2009-04-14 |
| 7516654 | Method and apparatus for downhole detection of CO2 and H2S using resonators coated with CO2 and H2S sorbents | — | 2009-04-14 |
| 7511819 | Light source for a downhole spectrometer | — | 2009-03-31 |