DC

David C. H. Cheng

HL Hughes Electronics Limited: 11 patents #20 of 1,474Top 2%
UT Unimicron Technology: 11 patents #23 of 284Top 9%
IBM: 5 patents #18,733 of 70,183Top 30%
WE World Wiser Electrics: 3 patents #1 of 10Top 10%
IP Intervoice Limited Partnership: 2 patents #21 of 85Top 25%
DI Directv: 2 patents #313 of 679Top 50%
TL The Boc Group Limited: 1 patents #283 of 612Top 50%
📍 Daxi District, CA: #3 of 31 inventorsTop 10%
Overall (All Time): #86,783 of 4,157,543Top 3%
38
Patents All Time

Issued Patents All Time

Showing 26–38 of 38 patents

Patent #TitleCo-InventorsDate
6288858 Method for improving magnetic recording at high data rates for waveforms having a burst of transitions Patrick Clinton Arnett, Radley Wahl Olson 2001-09-11
6257526 Satellite system and method of deploying same Frank Taormina, Donald C. D. Chang, Kar W. Yung, William W. Mayfield, John I. Novak, III +1 more 2001-07-10
6246363 Method and system for incorporating two-way ranging navigation as a calibration reference for GPS Kar W. Yung, Donald C. D. Chang 2001-06-12
6229477 Method and system for determining a position of a communication satellite utilizing two-way ranging Donald C. D. Chang, Kar W. Yung, William J. Nunan, Bruce Shuman 2001-05-08
6210746 Method of fabricating a solder resist mask 2001-04-03
6201300 Printed circuit board with thermal conductive structure Tzyy-Jang Tseng, Shaw-Wen Lao 2001-03-13
6175497 Thermal vias-provided cavity-down IC package structure T. J. Tseng 2001-01-16
6032355 Method of forming thermal conductive structure on printed circuit board Tzyy-Jang Tseng 2000-03-07
5822401 Statistical diagnosis in interactive voice response telephone system Ellis K. Cave, Eric Weeren, Daren K. Wilson 1998-10-13
5740233 System and method for statistical diagnosis of the operation of an automated telephone system Ellis K. Cave, Eric Weeren, Daren K. Wilson 1998-04-14
5483515 Apparatus and method for cancelling cross-talk in signals from optical data storage systems Jerry E. Hurst, Jr., Radley Wahl Olson, David A. Thompson 1996-01-09
5402052 Inductive current switching system with resonance Tarek Makansi, Muthuthamby Sri-Jayantha 1995-03-28
5026470 Sputtering apparatus Peter Ispvan Bonyhard, William J. Glover, Howard A. Hendrix, Ernest S. Ward, John W. Williams 1991-06-25