Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5221838 | Electronic wallet | Jose Gutman, Jim Wright, Louis D. Finkelstein | 1993-06-22 |
| 5187811 | Error detection | James C. Baker, Stephen N. Levine, Scott N. Carney | 1993-02-16 |
| 5170485 | Hand-off algorithm for elongated radiotelephone cells | Stephen N. Levine | 1992-12-08 |
| 5136704 | Redundant microprocessor control system using locks and keys | Carl M. Danielsen, Ezzat A. Dabbish | 1992-08-04 |
| 5131038 | Portable authentification system | Richard A. Comroe, Robert W. Furtaw, Tracey L. Cantarutti | 1992-07-14 |
| 5090015 | Programmable array logic self-checking system | Ezzat A. Dabbish, William L. Brendle | 1992-02-18 |
| 5072395 | Navigation system with easily learned destination selection interface | Harry M. Bliss | 1991-12-10 |
| 4984290 | Method of controlling communications in a cellular radiotelephone system | Stephen N. Levine | 1991-01-08 |
| 4984219 | Method and apparatus for decoding of frequency inversion based scramblers | Daniel P. Brown | 1991-01-08 |
| 4914697 | Cryptographic method and apparatus with electronically redefinable algorithm | Ezzat A. Dabbish, John P. Byrns, Michael J. McClaughry, Daniel P. Brown, Eric F. Ziolko +1 more | 1990-04-03 |
| 4803726 | Bit synchronization method for a digital radio telephone system | Stephen N. Levine, Harry M. Bliss, Gerald Corrigan | 1989-02-07 |
| 4629829 | Full duplex speakerphone for radio and landline telephones | Richard J. Vilmur | 1986-12-16 |
| 4486624 | Microprocessor controlled radiotelephone transceiver | John F. Smedinghoff | 1984-12-04 |
| 4485486 | Method and apparatus for assigning duplex radio channels and scanning duplex radio channels assigned to mobile and portable radio telephones in a cellular radiotelephone communications system | Ronald Webb | 1984-11-27 |
| 4434461 | Microprocessor with duplicate registers for processing interrupts | — | 1984-02-28 |
| 4398265 | Keyboard and display interface adapter architecture | Lawrence E. Connell | 1983-08-09 |
| 4390963 | Interface adapter architecture | Paul A. Kasley | 1983-06-28 |