Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6304763 | Communication device having multiple displays and method of operating the same | Ketan R. Jahagirdar, William P. Alberth, Jr., Rolland R. Hackbart, Stephen V. Cahill | 2001-10-16 |
| 6125286 | Communication device having multiple displays and method of operating the same | Ketan R. Jahagirdar, William P. Alberth, Jr., Rolland R. Hackbart, Stephen V. Cahill | 2000-09-26 |
| 6043721 | Dual band amplifier | Thomas D. Nagode, Aamir Abbasi | 2000-03-28 |
| 5815807 | Disposable wireless communication device adapted to prevent fraud | Michael P. Metroka | 1998-09-29 |
| 5797101 | Radiotelephone subscriber unit having a generic phone number | Michael P. Metroka | 1998-08-18 |
| 5438684 | Radio frequency signal power amplifier combining network | Dale G. Schwent, Robert N. Weisshappel | 1995-08-01 |
| 5363071 | Apparatus and method for varying the coupling of a radio frequency signal | Dale G. Schwent | 1994-11-08 |
| 5287555 | Power control circuitry for a TDMA radio frequency transmitter | Gregory P. Wilson, Donald Bernard Lemersal, Dale G. Schwent, John C. Johnson | 1994-02-15 |
| 5251331 | High efficiency dual mode power amplifier apparatus | Dale G. Schwent, Gary M. Cristiano | 1993-10-05 |
| 5230093 | Transmitter filter with integral directional coupler for cellular telephones | Randall W. Rich, Dale G. Schwent | 1993-07-20 |
| 5187809 | Dual mode automatic gain control | Randall W. Rich, Thomas J. Walczak, Stephen V. Cahill | 1993-02-16 |
| 5060294 | Dual mode power amplifier for radiotelephone | Dale G. Schwent, Gary M. Cristiano | 1991-10-22 |