| 8516376 |
Identification system for network data processing systems |
Daniel Manuel Dias, Vijay K. Naik |
2013-08-20 |
| 6996543 |
System for protection of goods against counterfeiting |
Don Coppersmith, Charles P. Tresser, Chai Wah Wu |
2006-02-07 |
| 6982625 |
Event-recorder for transmitting and storing electronic signature data |
Timothy J. Chainer, Charles P. Tresser, Chai Wah Wu |
2006-01-03 |
| 6737954 |
Event-recorder for transmitting and storing electronic signature data |
Timothy J. Chainer, Charles P. Tresser, Chai Wah Wu |
2004-05-18 |
| 6525672 |
Event-recorder for transmitting and storing electronic signature data |
Timothy J. Chainer, Charles P. Tresser, Chai Wah Wu |
2003-02-25 |
| 6501390 |
Method and apparatus for securely determining aspects of the history of a good |
Timothy J. Chainer, William Robert Pulleyblank, Charles P. Tresser, Chai Wah Wu |
2002-12-31 |
| 6397334 |
Method and system for authenticating objects and object data |
Timothy J. Chainer, Paul A. Moskowitz, Alejandro G. Schrott, Charles P. Tresser, Robert J. von Gutfeld +1 more |
2002-05-28 |
| 6069955 |
System for protection of goods against counterfeiting |
Don Coppersmith, Charles P. Tresser, Chai Wah Wu |
2000-05-30 |