Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12405273 | Modular assay reader device | Tong Xie, Stephan Hengstler, Benny Wing Hung Lai | 2025-09-02 |
| 11802869 | Modular assay reader device | Tong Xie, Stephan Hengstler, Benny Wing Hung Lai | 2023-10-31 |
| 11397181 | Modular assay reader device | Tong Xie, Stephan Hengstler, Benny Wing Hung Lai | 2022-07-26 |
| 8730168 | Contaminant-resistant optical mouse and cradle | Mark Melvin Butterworth, Michael J. Brosnan, Roopinder Singh Grewal, Paul Michael Welch, Marshall DePue +1 more | 2014-05-20 |
| 8264461 | Apparatus for controlling the position of a screen pointer with low sensitivity to particle contamination | Michael J. Brosnan, Ramakrishna Kakarala, Roopinder Singh Grewal, Mark Melvin Butterworth, Tong Xie +1 more | 2012-09-11 |
| 8081159 | Programmable lift response for an optical navigation device | John Wenstrand, Roopinder Singh Grewal | 2011-12-20 |
| 7675073 | Integrated circuit package provided with cooperatively arranged illumination and sensing capabilities | Michael J. Brosnan | 2010-03-09 |
| 7474297 | Contaminant-resistant optical mouse and cradle | Mark Melvin Butterworth, Michael J. Brosnan, Roopinder Singh Grewal, Paul Michael Welch, Marshall DePue +1 more | 2009-01-06 |
| 7449897 | Current fault detection for light emitters | Michael J. Brosnan, Shan Chong Tan | 2008-11-11 |
| 7446756 | Apparatus for controlling the position of a screen pointer with low sensitivity to particle contamination | Michael J. Brosnan, Ramakrishna Kakarala, Roopinder Singh Grewal, Mark Melvin Butterworth, Tong Xie +1 more | 2008-11-04 |
| 7400317 | Finger navigation system using captive surface | — | 2008-07-15 |
| 7399953 | Light source control in optical pointing device | Tong Xie, Ramakrishna Kakarala | 2008-07-15 |
| 7271601 | Current fault detection for light emitters | Michael J. Brosnan, Shan Chong Tan | 2007-09-18 |
| 7148078 | Integrated circuit package provided with cooperatively arranged illumination and sensing capabilities | Michael J. Brosnan | 2006-12-12 |
| 7075766 | Fault detection in a LED bias circuit | Michael J. Brosnan | 2006-07-11 |