| 2024-11-07 | WR4-1073533-01 | 1073533-01 | Topcon Positioning Systems, Inc. |
| 2024-10-22 | WR4-CL20 | CL20 | Topcon Positioning Systems, Inc. |
| 2024-07-24 | WR4-CL20 | CL20 | Topcon Positioning Systems, Inc. |
| 2024-06-04 | WR4-CL55 | CL55 | Topcon Positioning Systems, Inc. |
| 2024-06-04 | WR4-CL55 | CL55 | Topcon Positioning Systems, Inc. |
| 2024-01-11 | WR4-CL55 | CL55 | Topcon Positioning Systems, Inc. |
| 2024-01-11 | WR4-CL55 | CL55 | Topcon Positioning Systems, Inc. |
| 2024-01-11 | WR4-CL55 | CL55 | Topcon Positioning Systems, Inc. |
| 2023-02-24 | WR4-NT03RMIRD | NT03RMIRD | Topcon Positioning Systems, Inc. |
| 2023-02-24 | WR4-NT03RMIRD | NT03RMIRD | Topcon Positioning Systems, Inc. |
| 2021-03-26 | WR4-WT41UN | WT41UN | Topcon Positioning Systems, Inc. |
| 2021-03-03 | WR4-WT41UN | WT41UN | Topcon Positioning Systems, Inc. |
| 2018-09-05 | WR4-1003627 | 1003627 | Topcon Positioning Systems, Inc. |
| 2018-05-21 | LCB-F90901 | F90901 | Topcon America Corporation |
| 2016-09-02 | WR4-R2LITEFH915 | R2LITEFH915 | Topcon Positioning Systems, Inc. |
| 2015-12-22 | WR4-R2LITEUHF | R2LITEUHF | Topcon Positioning Systems, Inc. |
| 2015-02-03 | LCB-100926 | 100926 | Topcon America Corporation |
| 2014-01-06 | WR4-TPSWT41 | TPSWT41 | Topcon Positioning Systems, Inc. |
| 2013-12-11 | WR4-TPSWT41 | TPSWT41 | Topcon Positioning Systems, Inc. |
| 2013-08-02 | WR4-MC-I3 | MC-I3 | Topcon Positioning Systems, Inc. |
| 2013-04-04 | WR4-TPSWT41E | TPSWT41E | Topcon Positioning Systems, Inc. |
| 2013-02-28 | WR4-TPSWT41E | TPSWT41E | Topcon Positioning Systems, Inc. |
| 2008-10-13 | WR4-FC2500 | FC2500 | Topcon Positioning Systems, Inc. |
| 2008-10-02 | WR4-FC2500 | FC2500 | Topcon Positioning Systems, Inc. |
| 2006-09-01 | LCB-060501 | 060501 | Topcon America Corporation |
| 2006-07-25 | LCB-050901 | 050901 | Topcon America Corporation |
| 2006-05-02 | LCB-841201 | 841201 | Topcon America Corporation |
| 2005-07-07 | LCB-860801 | 860801 | Topcon America Corporation |
| 2005-07-07 | LCB-860801 | 860801 | Topcon America Corporation |
| 2003-08-08 | LCB-840802 | 840802 | Topcon America Corporation |
| 2003-08-08 | LCB-840802 | 840802 | Topcon America Corporation |
| 2003-05-02 | LCB-840801 | 840801 | Topcon America Corporation |
| 1994-04-05 | LCBAP-L1 | AP-L1 | Topcon America Corporation |