Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D752334 | Sock with arch support | Gary Ray Cagle | 2016-03-29 |
| 6583685 | Antenna arrangement | Keith Jeremy Twort, John Davies | 2003-06-24 |
| RE37835 | Coil construction | Jerzy J. Kropielnicki, Keith Jeremy Twort | 2002-09-10 |
| 5835066 | Coil construction | Jerzy J. Kropielnicki, Keith Jeremy Twort | 1998-11-10 |
| 5293174 | Vehicle antenna | Jerzy J. Kropielnicki, James D. Last | 1994-03-08 |
| 5293173 | Signal separating device | Jerzy J. Kropielnicki | 1994-03-08 |
| 4928108 | Electrical signal separating device having isolating and matching circuitry for split passband matching | Jerzy J. Kropielnicki, James D. Last | 1990-05-22 |
| 4903034 | Electrical signal separating device having isolating and matching circuitry | Jerzy J. Kropielnicki, James D. Last | 1990-02-20 |
| 4903035 | Electrical signal separating device having isolating and matching circuitry | Jerzy J. Kropielnicki, James D. Last | 1990-02-20 |
| 4761826 | Signal separating device | Jerzy J. Kropielnicki, James D. Last | 1988-08-02 |
| 4654669 | Electrical signal separating device for window antenna having isolating and matching circuitry | Jerzy J. Kropielnicki, James D. Last | 1987-03-31 |