Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12196604 | Signal processing methods for an optical detection system | Andrew B. Lewis, Andris EGLE | 2025-01-14 |
| 11438059 | Method and apparatus for detecting a disturbance in a medium based on shifted filtered phase information for a plurality of locations | Andrew B. Lewis | 2022-09-06 |
| 11431409 | Method and apparatus for detecting a disturbance in a medium based on shifted filtered phase information for a plurality of fixed locations | Justin Hayward, Andrew B. Lewis | 2022-08-30 |
| 10972181 | Method and apparatus for detecting a disturbance in a medium | Justin Hayward, Andrew B. Lewis | 2021-04-06 |
| 10972180 | Method and apparatus for detecting a disturbance in a medium | Andrew B. Lewis | 2021-04-06 |
| 10623092 | Method and apparatus for detecting a disturbance in a medium using threshold based detection | Justin Hayward, Andrew B. Lewis | 2020-04-14 |
| 10623091 | Method and apparatus for detecting a disturbance in a medium using threshold based detection | Andrew B. Lewis | 2020-04-14 |
| 10495491 | Distributed fibre optic sensing | Andrew B. Lewis | 2019-12-03 |
| 10454573 | Method and apparatus for detecting a disturbance in a medium | Justin Hayward, Andrew B. Lewis | 2019-10-22 |
| 10447388 | Method and apparatus for detecting a disturbance in a medium | Andrew B. Lewis | 2019-10-15 |
| 9945717 | Fibre optic distributed sensing | Andrew B. Lewis | 2018-04-17 |
| 9909903 | Apparatus for deriving measurement signals from fibre optic distributed sensors | Andrew B. Lewis | 2018-03-06 |
| 9787394 | Method and apparatus for acoustic sensing using multiple optical pulses | Andrew B. Lewis | 2017-10-10 |
| 9768863 | Method and apparatus for acoustic sensing using multiple optical pulses | Justin Hayward, Andrew B. Lewis | 2017-09-19 |
| 9465126 | Seismic geophysical surveying | Andrew B. Lewis | 2016-10-11 |
| 9435668 | Fibre optic distributed sensing | Andrew B. Lewis | 2016-09-06 |
| 9154223 | Method and apparatus for acoustic sensing using multiple optical pulses | Andrew B. Lewis | 2015-10-06 |
| 9148219 | Method and apparatus for acoustic sensing using multiple optical pulses | Justin Hayward, Andrew B. Lewis | 2015-09-29 |
| 7764363 | Method and apparatus for acoustic sensing using multiple optical pulses | Justin Hayward, Andrew B. Lewis | 2010-07-27 |
| 7742157 | Method and apparatus for acoustic sensing using multiple optical pulses | Andrew B. Lewis | 2010-06-22 |
| 6650798 | Identification and location of fiber optic cables | Andrew B. Lewis, John P. Dakin | 2003-11-18 |
| 6490045 | Fibre optic sensor | John P. Dakin | 2002-12-03 |
| 6480635 | Identification and location of fiber optic cables | Andrew B. Lewis, John P. Dakin | 2002-11-12 |