Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11965855 | Device for improving gas detection in photoionization detector | Chang Liu, Guangli Xie, Zhiguo Wang, Yang Zhang | 2024-04-23 |
| 11714073 | Photoionization detector automated zero level calibration | Guangli Xie, Zhanghua Wu, Yaofu Gong | 2023-08-01 |
| 11604163 | Device for improving gas detection in photoionization detector | Chang Liu, Guangli Xie, Zhiguo Wang, Yang Zhang | 2023-03-14 |
| 11480554 | Photoionization detector automated zero level calibration | Guangli Xie, Zhanghua Wu, Yaofu Gong | 2022-10-25 |
| 11162917 | Device for improving gas detection in photoionization detector | Chang Liu, Guangli Xie, Zhiguo Wang, Yang Zhang | 2021-11-02 |
| 10996197 | Collection surface for electrodes in photoionization detector | Qidao Lin, Guangli Xie, Zhanghua Wu | 2021-05-04 |
| 10969371 | Photoionization detector automated zero level calibration | Guangli Xie, Zhanghua Wu, Yaofu Gong | 2021-04-06 |
| 10942061 | Shielding for electrodes in photoionization detector | Yuzhong Wang, Qidao Lin, Guangli Xie, Zhanghua Wu | 2021-03-09 |
| 10782273 | Photoionization detector automated zero level calibration | Guangli Xie, Zhanghua Wu, Yaofu Gong | 2020-09-22 |
| 9939592 | Micro single-fiber bidirectional optical transceiver module of the same wavelength | Guangzhi He, Xiangxiang Pang | 2018-04-10 |
| 7745777 | Active imaging system that recaptures and processes a reflected illumination beam | — | 2010-06-29 |
| 7324575 | Lens with reflective surface | James R. Biard | 2008-01-29 |
| 7298942 | Pluggable optical optic system having a lens fiber stop | Raymond Blasingame, James Cheng Lee, James Orenstein, James K. Guenter | 2007-11-20 |
| 7149383 | Optical system with reduced back reflection | — | 2006-12-12 |
| 7139454 | Methods for signal transmission in optical fiber | James Allen Cox | 2006-11-21 |
| 7129508 | Compact VCSEL sensor with multiple sensing capabilities | — | 2006-10-31 |
| 6984076 | Compact package design for vertical cavity surface emitting laser array to optical fiber cable connection | Harold Y. Walker, Jr., Klein L. Johnson, Yue Liu | 2006-01-10 |
| 6975109 | Method for forming a magnetic sensor that uses a Lorentz force and a piezoelectric effect | — | 2005-12-13 |
| 6961489 | High speed optical system | James Allen Cox | 2005-11-01 |
| 6885797 | Zero clearance receptacle design for single mode optical fiber connectors | James Cheng Lee, Raymond Blasingame, Bernard Q. Li, James Orenstein | 2005-04-26 |
| 6817528 | Reflective apparatus and method for optically sensing relative torque employing Moirè fringes | — | 2004-11-16 |
| 6426621 | Method and apparatus for generating an output voltage by detecting magnetic field | — | 2002-07-30 |
| 6400460 | Multifunction optical sensor with variable detection threshold and noise suppression | — | 2002-06-04 |
| 6354716 | Light curtain device | Richard A. Alderman | 2002-03-12 |
| 6018159 | Differential clear container sensor with improved noise immunity | Richard A. Alderman, David Allen Klein | 2000-01-25 |