Roper; Michael James
Patent Applications and Registrations
Patent applications and USPTO patent grants for Roper; Michael James.The latest application filed is for "magnetic positioning system".
- Roper; Michael James - Ottawa CA
| Patent | Date |
|---|---|
| Magnetic positioning system Grant 11,118,912 - Roper , et al. September 14, 2 | 2021-09-14 |
| Magnetic Positioning System App 20190383619 - ROPER; Michael James ; et al. | 2019-12-19 |
| Through-the-earth emergency radio system Grant 10,277,335 - Roper , et al. | 2019-04-30 |
| Through-the-earth Emergency Radio System App 20180091237 - ROPER; Michael James ; et al. | 2018-03-29 |
| Through-the-earth emergency radio system Grant 9,866,333 - Roper , et al. January 9, 2 | 2018-01-09 |
| Through-the-earth Emergency Radio System App 20170187471 - ROPER; Michael James ; et al. | 2017-06-29 |
| System, method and apparatus for controlling buried devices Grant 9,450,684 - Roper , et al. September 20, 2 | 2016-09-20 |
| VLF transmit antenna system, method and apparatus Grant 9,231,799 - Roper , et al. January 5, 2 | 2016-01-05 |
| System, Method And Apparatus For Controlling Buried Devices App 20150333843 - Roper; Michael James ; et al. | 2015-11-19 |
| Vlf Transmit Antenna System, Method And Apparatus App 20140314129 - Roper; Michael James ; et al. | 2014-10-23 |
| User Programmable Monitoring System, Method And Apparatus App 20140095170 - Roper; Michael James ; et al. | 2014-04-03 |
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