Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11212380 | Ruggedized voice and data communications system | Mark Davis | 2021-12-28 |
| 10187501 | Ruggedized voice and data communications system | Mark Davis | 2019-01-22 |
| 6201853 | Telephone technician's remote assist apparatus and method | Carl Bright, Lawrence O. Hilligoss | 2001-03-13 |
| 5903817 | Automated hard-copy mobile remote communication apparatus, system and method | Mark Humphreys | 1999-05-11 |
| 5903624 | Data terminal for telephone circuits | Lanny E. Boswell, Christopher Madore | 1999-05-11 |
| 5896569 | Wireless access to telephone network dial tone | Lawrence O. Hilligoss, George Alter | 1999-04-20 |
| 5377259 | Data terminal having program language support library, and related method | Christopher Madore | 1994-12-27 |
| 5235629 | Apparatus for telephone line checking | Lawrence O. Hilligoss | 1993-08-10 |
| 5025466 | Telephone test instrument | William R. Hilligoss, Lawrence D. Hillogoss, David Van Winkle | 1991-06-18 |
| 4991195 | Apparatus and method for testing a telephone circuit protector | Lawrence O. Hilligoss | 1991-02-05 |
| 4922516 | Telephone technician's terminals with auto-selection of dial pulse on DTMF signalling | Christopher Madore | 1990-05-01 |
| 4837811 | Telephone technician's terminals | Christopher Madore | 1989-06-06 |
| 4661969 | Communication lines with terminate and leave capability-VF data bridge | Lawrence O. Hilligoss, William R. Hilligoss | 1987-04-28 |
| 4639557 | Remote testing system for electrical circuits | William R. Hilligoss, Lawrence O. Hilligoss | 1987-01-27 |