Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12302108 | SIM swap fraud detection | — | 2025-05-13 |
| 11863831 | Remote control devices to interface with audience measurement meters | Eric Barone, Joseph W. Brewer, Matjaz Finc | 2024-01-02 |
| 11808710 | Methods and systems for determining an ionic strength of a dilute aqueous solution | — | 2023-11-07 |
| 11368759 | Remote control devices to interface with audience measurement meters | Eric Barone, Joseph W. Brewer, Matjaz Finc | 2022-06-21 |
| 11356272 | Methods and devices for handling hash-tree based data signatures | — | 2022-06-07 |
| 10620129 | Systems and methods for determining carbon system parameters of water | — | 2020-04-14 |
| 10060891 | Continuous acid-free measurements of total alkalinity | Xuewu Liu | 2018-08-28 |
| 8785207 | Method and apparatus for measuring multiple parameters in-situ of a sample collected from environmental systems | Ryan J. Bell, R. Timothy Short, Strawn K. Toler | 2014-07-22 |
| 8077311 | Spectrophotometric system for simultaneous flow-through measurements of dissolved inorganic carbon, pH and CO2 fugacity | Eric Kaltenbacher, Xuewu Liu | 2011-12-13 |
| 8071031 | Device for in situ calibrated potentiometric pH measurements | — | 2011-12-06 |
| 8012760 | Sensor for direct measurement of carbonate ions in seawater | — | 2011-09-06 |
| 7943391 | Method of performing in situ calibrated potentiometric pH measurements | — | 2011-05-17 |
| 7842507 | Sensor for direct measurement of carbonate ions in seawater | — | 2010-11-30 |
| 7727770 | System and method for spectrophotometric measurement of total alkalinity using a liquid core waveguide | Eric Kaltenbacher, Xuewu Liu | 2010-06-01 |
| 7538877 | Variable exposure rotary spectrometer and method of use | Eric Kaltenbacher, David P. Fries | 2009-05-26 |
| 7453572 | Method and apparatus for continuous measurement of the refractive index of fluid | Andres M. Cardenas-Valencia, Eric Steimle, Melynda C. Calves | 2008-11-18 |
| 7024060 | Method and apparatus for continuous measurement of the refractive index of fluid | Andres M. Cardenas-Valencia, Eric Steimle, Melynda C. Calves | 2006-04-04 |
| 6744045 | Portable underwater mass spectrometer | David P. Fries, Robert T. Short | 2004-06-01 |
| 6727498 | Portable underwater mass spectrometer | David P. Fries, Robert T. Short | 2004-04-27 |
| 5925572 | Apparatus and method for in situ pH measurement of aqueous medium | Robert Douglas Waterbury, John Kelly, Bram Leader, Randy P. Russell, Charles Jones +2 more | 1999-07-20 |