Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9915530 | Illumination device for use with survey level rod and method of use | Michael J. Gregory | 2018-03-13 |
| 9121700 | Surveying and leveling device | John D. Baker, Michael J. Gregory | 2015-09-01 |
| 8864327 | Illumination device for use with survey level rod and method of use | Michael J. Gregory | 2014-10-21 |