| 5764275 |
Interactive television security through transaction time stamping |
John P. Lappington, Wayne Y. Yamamoto, Cameron A. Wilson, Eric C. Berkobin, Richard S. Simons |
1998-06-09 |
| 5734413 |
Transaction based interactive television system |
John P. Lappington, Wayne Y. Yamamoto, Cameron A. Wilson |
1998-03-31 |
| 5638113 |
Transaction based interactive television system |
John P. Lappington, Wayne Y. Yamamoto, Cameron A. Wilson |
1997-06-10 |
| 5526035 |
Transaction based interactive television system |
John P. Lappington |
1996-06-11 |
| 5519433 |
Interactive television security through transaction time stamping |
John P. Lappington, Wayne Y. Yamamoto, Cameron A. Wilson, Eric C. Berkobin, Richard S. Simons |
1996-05-21 |
| D357685 |
Modem for an interactive television system |
John Reardon, Maureen Carroll, Devin C. Moore |
1995-04-25 |
| D351381 |
Interactive receiver for a television set |
John Reardon, Maureen Carroll, Devin C. Moore |
1994-10-11 |
| D350962 |
Hand held television controller |
John Reardon, Maureen Carroll, Devin C. Moore, David S. Rowley |
1994-09-27 |
| 5343239 |
Transaction based interactive television system |
John P. Lappington |
1994-08-30 |