Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10560574 | Dual compatibility phone system | Robert M. Engelke, Kevin R. Colwell | 2020-02-11 |
| 10542131 | 911 call assistance for assisted device user | Robert M. Engelke, Kevin R. Colwell | 2020-01-21 |
| 10491746 | Captioned telephone service | Robert M. Engelke, Kevin R. Colwell | 2019-11-26 |
| 10469660 | Device independent text captioned telephone service | Robert M. Engelke, Kevin R. Colwell | 2019-11-05 |
| 10298753 | Communication device and methods for use by hearing impaired | Robert M. Engelke, Kevin R. Colwell | 2019-05-21 |
| 10225400 | Dual compatibility phone system | Robert M. Engelke, Kevin R. Colwell | 2019-03-05 |
| 10051120 | Communication device and methods for use by hearing impaired | Robert M. Engelke, Kevin R. Colwell | 2018-08-14 |
| 10021229 | 911 call assistance for assisted device user | Robert M. Engelke, Kevin R. Colwell | 2018-07-10 |
| 10015311 | Device independent text captioned telephone service | Robert M. Engelke, Kevin R. Colwell | 2018-07-03 |
| 9955007 | Dual compatibility phone system | Robert M. Engelke, Kevin R. Colwell | 2018-04-24 |
| D772836 | Telecommunication device | Robert M. Engelke, Kevin Colwell, Peter Kirschhoffer | 2016-11-29 |
| D763219 | Telecommunication device | Robert M. Engelke, Kevin Colwell, Peter Kirschhoffer | 2016-08-09 |
| 9350857 | 911 call assistance for assisted device user | Robert M. Engelke, Kevin R. Colwell | 2016-05-24 |
| 8917821 | Device independent text captioned telephone service | Robert M. Engelke, Kevin R. Colwell | 2014-12-23 |
| 8515024 | Captioned telephone service | Robert M. Engelke, Kevin R. Colwell | 2013-08-20 |
| 8416925 | Device independent text captioned telephone service | Robert M. Engelke, Kevin R. Colwell | 2013-04-09 |
| 7881441 | Device independent text captioned telephone service | Robert M. Engelke, Kevin R. Colwell, Kurt M. Gritner | 2011-02-01 |
| 7660398 | Captioned telephone service | Robert M. Engelke, Kevin R. Colwell | 2010-02-09 |
| 7164753 | Real-time transcription correction system | Robert M. Engelke, Kevin R. Colwell, Kurt Grittner, Jayne M. Turner, Pamela A. Frazier | 2007-01-16 |
| 6934366 | Relay for personal interpreter | Robert M. Engelke, Kevin R. Colwell, Kurt M. Gritner | 2005-08-23 |
| 6882707 | Method and apparatus for training a call assistant for relay re-voicing | Robert M. Engelke, Kevin R. Colwell, Kurt M. Gritner, Jayne M. Turner, Pamela A. Frazier | 2005-04-19 |
| 6567503 | Real-time transcription correction system | Robert M. Engelke, Kevin R. Colwell, Kurt M. Gritner, Jayne M. Turner, Pamela A. Frazier | 2003-05-20 |
| 6504910 | Voice and text transmission system | Robert M. Engelke, Kevin R. Colwell, Jeffrey L. Havens, Kurt Grittner, Dean Hofstetter +1 more | 2003-01-07 |
| 6493426 | Relay for personal interpreter | Robert M. Engelke, Kevin R. Colwell, Kurt M. Gritner | 2002-12-10 |
| 6075841 | In-line text display for telephone terminal employing data filtering | Robert M. Engelke, Kevin Colwell, Ronald W. Schultz | 2000-06-13 |