Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5260664 | Network monitor and test apparatus | — | 1993-11-09 |
| 5257006 | Method and apparatus for power line communications | Howard W. Johnson | 1993-10-26 |
| 5210518 | Apparatus and method for reducing errors in data caused by noise | Howard W. Johnson, Philip H. Sutterlin, Chin-Chen Lee, Amy O. Hurlbut | 1993-05-11 |
| 5191300 | Local area network amplifier for twisted pair lines | Anthony J. Ireland, Mark S. Miller, Matthew A. Taylor | 1993-03-02 |
| 4870004 | Apparatus and method of analyzing nucleic acid molecules | Thomas James Conroy | 1989-09-26 |
| 4803699 | Bus apparatus with a plurality of transmitters | — | 1989-02-07 |
| 4800344 | Balun | — | 1989-01-24 |
| 4752940 | Method and apparatus for transmission of digital data over a line | — | 1988-06-21 |
| 4717896 | Balun | — | 1988-01-05 |
| 4627050 | Time division multiplexed computerized branch exchange | Howard W. Johnson, Michael G. Duncan, Rod G. Sinks, John Edwards, James M. Kasson +1 more | 1986-12-02 |
| 4600982 | Low power consuming AC to DC converter | — | 1986-07-15 |
| 4484035 | Dual tone multi frequency digital detector | Enoch Callaway | 1984-11-20 |
| 4475235 | Signature verification sensor | — | 1984-10-02 |
| 4459558 | Phase locked loop having infinite gain at zero phase error | — | 1984-07-10 |
| 4445048 | High speed ribbon cable bus | — | 1984-04-24 |
| 4411004 | Inductively coupled sensing circuit and priority system | — | 1983-10-18 |
| 4320520 | Transmitter/receiver for use on common cable communications system such as ethernet | — | 1982-03-16 |
| 4187466 | Signal injection technique | James M. Kasson | 1980-02-05 |