Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9547103 | Gradiometer and method of changing an optical path length to directly obtain a value of a gradient of gravity | Timothy M. Niebauer, Ryan M. Billson | 2017-01-17 |
| 9500766 | Interferometric gravimeter apparatus and method | Timothy M. Niebauer, Ryan M. Billson | 2016-11-22 |
| 9256079 | Polarized beam director and method | Timothy M. Niebauer, Ryan M. Billson | 2016-02-09 |
| 9110185 | Polarized beam, matched coincident beam path, interferometric gradiometer apparatus and method | Timothy M. Niebauer, Ryan M. Billson | 2015-08-18 |
| 8978465 | Interferometric gradiometer apparatus and method | Ryan M. Billson, Timothy M. Niebauer | 2015-03-17 |
| 8931341 | Test mass and method for interferometric gravity characteristic measurement | Ryan M. Billson, Timothy M. Niebauer | 2015-01-13 |
| 7451645 | Test mass for gravimeters and gradiometers | Timothy M. Niebauer, Ryan M. Billson, Jess Valentine, Derek C. S. van Westrum | 2008-11-18 |