| 12000733 |
Apparatus and method for enhancing the safety of laser based systems |
Howard Y. Bell, Joshua Collins, Wenyu Hu |
2024-06-04 |
| 8360317 |
Apparatus and method for enhancing card security |
Wenyu Han |
2013-01-29 |
| 7744130 |
Secure product authentication tags |
Wenyu Han |
2010-06-29 |
| 7407101 |
Card with enhanced security features |
Wenyu Han |
2008-08-05 |
| 7104449 |
Method and apparatus for patterning cards, instruments and documents |
Wenyu Han |
2006-09-12 |
| 6902111 |
Method and apparatus for impeding the counterfeiting of discs |
Wenyu Han |
2005-06-07 |
| 6616043 |
Multi sensor information reader |
Wenyu Han |
2003-09-09 |
| 6354506 |
Method and apparatus for impeding the counterfeiting of cards, instruments and documents |
Wenyu Han |
2002-03-12 |
| 6193156 |
Method and apparatus for patterning cards, instruments and documents |
Wenyu Han |
2001-02-27 |
| 6135355 |
Method and apparatus for impeding the counterfeiting of cards, instruments and documents |
Wenyu Han |
2000-10-24 |
| 6068301 |
Method and apparatus for impeding the counterfeiting of cards, instruments and documents |
Wenyu Han |
2000-05-30 |
| 5408080 |
Electronically triggered bar code scanner |
Brian Zhang, Wenyu Han, Xin Zheng, Mandel Glincman |
1995-04-18 |
| 5036219 |
Precise, high speed CMOS track (sample)/hold circuits |
Andrew G. F. Dingwall, Harry G. Erhardt |
1991-07-30 |
| 5021747 |
Symmetrical variable impedance apparatus employing MOS transistors |
Robert H. Isham |
1991-06-04 |
| 4924225 |
Analog to digital converter with integral linearity error compensation and method of operation |
Andrew G. F. Dingwall |
1990-05-08 |
| 4897655 |
High speed apparatus for a single latch flash analog-to-digital converter |
Stanley F. Wietecha, Mandel Glincman |
1990-01-30 |
| 4792837 |
Orthogonal bipolar transistor |
— |
1988-12-20 |
| 4691189 |
Comparator with cascaded latches |
Andrew G. F. Dingwall |
1987-09-01 |
| 4612531 |
Intermeshed resistor network for analog to digital conversion |
Andrew G. F. Dingwall |
1986-09-16 |
| 4594560 |
Precision setting of the bias point of an amplifying means |
Andrew G. F. Dingwall |
1986-06-10 |
| 4553132 |
Apparatus for matching FET switches as for a video digital-to-analog converter |
Andrew G. F. Dingwall |
1985-11-12 |
| 4507649 |
Flash A/D converter having reduced input loading |
Andrew G. F. Dingwall |
1985-03-26 |
| 4449118 |
Switching circuitry as for a flash A/D converter |
Andrew G. F. Dingwall |
1984-05-15 |
