Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10794726 | Computing and displaying climb dive marker elevation | Lawerance Ray Butler, Keith Grandin, Michael Allen Robb | 2020-10-06 |
| 10731981 | Device and method for combined altitude display | Lawerance Ray Butler, Keith Grandin, Michael Allen Robb, Donald Grant Gwynne | 2020-08-04 |
| 8144691 | Query-based call routing mechanism for multinode cooperative telecommunication network | Robert Victor Holland | 2012-03-27 |
| 5671251 | Apparatus and method for a data communications device to selectively operate as an analog modem, as a digital modem, and as a terminal adapter | Steven R. Blackwell, C. C. Fridlin | 1997-09-23 |
| 5598401 | Apparatus and method for a digital data communications device to operate in an analog mode | Steven R. Blackwell, Charles C. Fridlin, IV | 1997-01-28 |