| 10540887 |
Power-line communications |
John Alson Hicks, III, Brett Allen Davis, Glenn Howell, Robin Thomas, Randy Zimler |
2020-01-21 |
| 9495865 |
Power-line communications |
John Alson Hicks, III, Brett Allen Davis, Glenn Howell, Robin Thomas, Randy Zimler |
2016-11-15 |
| 8995919 |
Interference management using out-of-band signaling |
Randy Zimler, George B. Bolam |
2015-03-31 |
| 8599867 |
Communication environment switchover |
John Alson Hicks, III |
2013-12-03 |
| 8351444 |
Communication environment switchover |
John Alson Hicks, III |
2013-01-08 |
| 7711102 |
Automatically sequentially ringing alternative telephone numbers |
David A. Levine, Greg N. Patterson, Zhiqiang Zeeman Zhang, Sunil H. Contractor, Ping Song |
2010-05-04 |
| 7646777 |
Communication environment switchover |
John Alson Hicks, III |
2010-01-12 |
| 7194080 |
Automatically sequentially ringing alternative telephone numbers |
David A. Levine, Greg N. Patterson, Zhiqiang Zeeman Zhang, Sunil H. Contractor, Ping Song |
2007-03-20 |
| 7035385 |
Method and system for screening calls during voicemail messaging |
David A. Levine, Greg N. Patterson, Zhigiang Zhang |
2006-04-25 |
| 6868268 |
Audio calling name and number delivery |
David A. Levine, Greg N. Patterson, Zhiqiang Zeeman Zhang |
2005-03-15 |
| 6816582 |
Automatically simultaneously ringing alternative telephone numbers |
David A. Levine, Gregory N. Patterson, Z. Zeeman Zhang |
2004-11-09 |
| 5414385 |
Dual mode FM quadrature detector |
— |
1995-05-09 |