| 10920378 |
Stamped steel detectable warning tile and method of manufacture |
Theodore W. Meyers, Samuel J. Gerrits, John B. Fairbanks, Jr., Mike Boyden, Craig Stefan +2 more |
2021-02-16 |
| 10404762 |
Communication system and method |
Manrique Brenes, Dmytro Izotov, Daniel Winston |
2019-09-03 |
| 10291660 |
Communication system and method |
Manrique Brenes |
2019-05-14 |
| 9774695 |
Enhanced presence detection for routing decisions |
Ivan Dean Bogdanovic, John Bratt |
2017-09-26 |
| 9608946 |
Retrieval of stored transmissions |
— |
2017-03-28 |
| 9521360 |
Communication system and method |
— |
2016-12-13 |
| 9043410 |
Retrieval of stored transmissions |
— |
2015-05-26 |
| 8963982 |
Communication system and method |
— |
2015-02-24 |
| 8447021 |
Hold detection and handling |
Theo Peter Zourzouvillys, Eric Rescorla |
2013-05-21 |