Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10168153 | Enhanced position measurement systems and methods | Christian Grässer, Peter Cornelius Kistler, Rod Johnson | 2019-01-01 |
| 9588226 | System and method for providing position correction data | Nigel Peter Hanson, Geoffrey R. Kirk | 2017-03-07 |
| 9182229 | Enhanced position measurement systems and methods | Christian Grässer, Peter Cornelius Kistler, Rod Johnson, Magnus Westermark | 2015-11-10 |
| 6628308 | Graphical aids for surveying | Nathan D. Pugh, Stephen O'Neill | 2003-09-30 |