Issued Patents All Time
Showing 1–25 of 127 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11892400 | Reflective depth interrogation for analyte measurement in liquids | Thomas Campbell | 2024-02-06 |
| 11747259 | Temperature adjusted modulation of a signal center wavelength in liquid absorption spectroscopy | Thomas Campbell | 2023-09-05 |
| 11604138 | Minimization of noise in optical data capture for liquids | Thomas Campbell | 2023-03-14 |
| 10983046 | Enhanced optical data capture using NDIR for liquids | Thomas Campbell | 2021-04-20 |
| 10976243 | Minimization of noise in optical data capture for liquids | Thomas Campbell | 2021-04-13 |
| 10473586 | Enhanced optical data capture using NDIR for liquids | Thomas Campbell | 2019-11-12 |
| 10241044 | NDIR glucose detection in liquids | Thomas Campbell | 2019-03-26 |
| 10041881 | NDIR glucose detection in liquids | Thomas Campbell | 2018-08-07 |
| 9823185 | NDIR reflection sampling in liquids | Thomas Campbell | 2017-11-21 |
| 9726601 | NDIR interference control in liquids | Thomas Campbell | 2017-08-08 |
| 9678000 | Reduction of scattering noise when using NDIR with a liquid sample | Thomas Campbell | 2017-06-13 |
| 9606053 | Reduction of scattering noise when using NDIR with a liquid sample | Thomas Campbell | 2017-03-28 |
| 9285308 | Interference-compensating NDIR gas sensor for measuring acetylene | Renyan Qin, Daniel Tschudi | 2016-03-15 |
| 8917183 | Methane and water vapor gas sensors integrated into a personal miner's alarm | — | 2014-12-23 |
| 8866085 | Differential temperature source NDIR gas sensing methodology | — | 2014-10-21 |
| 8842283 | Apparatus, system, and method for detecting engine fluid constituents | John M. Janssen, Frederick H. Lindner | 2014-09-23 |
| 8729475 | Absorption biased single beam NDIR gas sensor | — | 2014-05-20 |
| 8690055 | Electronic card | Roy L. Anderson, Larry Routhenstein | 2014-04-08 |
| 8648322 | Optical sensing in an adverse environment | Frederick H. Lindner | 2014-02-11 |
| 8415626 | Intrinsically safe NDIR gas sensor in a can | — | 2013-04-09 |
| 8222606 | Air sampler for recalibration of absorption biased designed NDIR gas sensors | — | 2012-07-17 |
| 8217355 | Self-commissioning NDIR gas sensors | — | 2012-07-10 |
| 8218147 | Apparatus, system, and method for detecting engine fluid constituents | John M. Janssen, Frederick H. Lindner | 2012-07-10 |
| 8191772 | Method for generating customer one-time unique purchase order numbers | Roy L. Anderson, William R. Bryant | 2012-06-05 |
| 8178832 | Re-calibration methodology for NDIR gas sensors | — | 2012-05-15 |