LL

Louis H. Liang

VT Vlsi Technology: 16 patents #15 of 594Top 3%
AT Angstrom Technologies: 13 patents #1 of 9Top 15%
UN Unknown: 2 patents #12,644 of 83,584Top 20%
📍 Los Altos, CA: #379 of 3,651 inventorsTop 15%
🗺 California: #17,156 of 386,348 inventorsTop 5%
Overall (All Time): #126,163 of 4,157,543Top 4%
30
Patents All Time

Issued Patents All Time

Showing 1–25 of 30 patents

Patent #TitleCo-InventorsDate
6603871 First-order authentication system 2003-08-05
6470093 First-order authentication system 2002-10-22
6373965 Apparatus and methods for authentication using partially fluorescent graphic images and OCR characters 2002-04-16
D453175 Money checker 2002-01-29
6057177 Reinforced leadframe to substrate attachment 2000-05-02
5905300 Reinforced leadframe to substrate attachment 1999-05-18
5867586 Apparatus and methods for fluorescent imaging and optical character reading 1999-02-02
5719948 Apparatus and methods for fluorescent imaging and optical character reading 1998-02-17
5714291 System for authenticating printed or reproduced documents Daniel A. Marinello, William McGinness 1998-02-03
5666417 Fluorescence authentication reader with coaxial optics Daniel A. Marinello, William J. Ryan, Donald L. Wray 1997-09-09
5605738 Tamper resistant system using ultraviolet fluorescent chemicals William McGinness 1997-02-25
5574790 Fluorescence authentication reader with coaxial optics Daniel A. Marinello, William J. Ryan, David E. Silverglate, Donald L. Wray 1996-11-12
5548106 Methods and apparatus for authenticating data storage articles Daniel A. Marinello, William J. Ryan 1996-08-20
5532612 Methods and apparatus for test and burn-in of integrated circuit devices 1996-07-02
5442234 Apparatus for thermally coupling a heat sink to a leadframe 1995-08-15
5420758 Integrated circuit package using a multi-layer PCB in a plastic package 1995-05-30
5418855 Authentication system and method Daniel A. Marinello, William J. Ryan, Donald L. Wray 1995-05-23
5414258 Apparatus and method for calibration of fluorescence detectors 1995-05-09
5414299 Semi-conductor device interconnect package assembly for improved package performance Tsing-Chow Wang 1995-05-09
5387554 Apparatus and method for thermally coupling a heat sink to a lead frame 1995-02-07
5386141 Leadframe having one or more power/ground planes without vias Tsing-Chow Wang 1995-01-31
5378924 Apparatus for thermally coupling a heat sink to a lead frame 1995-01-03
5365409 Integrated circuit package design having an intermediate die-attach substrate bonded to a leadframe Young I. Kwon 1994-11-15
5359227 Lead frame assembly and method for wiring same Sang S. Lee 1994-10-25
5350713 Design and sealing method for semiconductor packages 1994-09-27