Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
GK

Gopalan Krishnamurthy — 21 Patents

ZEZenith Electronics: 17 patents #18 of 411Top 5%
TETrident Microsystems (Far East): 3 patents #14 of 125Top 15%
3C3Com: 1 patents #653 of 1,190Top 55%
Hillside, IL: #1 of 23 inventorsTop 5%
Illinois: #3,568 of 84,256 inventorsTop 5%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
Gopalan Krishnamurthy has been granted 21 US patents while listed as an inventor at Zenith Electronics. The first was granted in 1987 and the most recent in August 2011. Gopalan Krishnamurthy ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Gopalan Krishnamurthy in Hillside, IL, US.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7995648 Advanced digital receiver Jingsong Xia, Shidong Chen, Richard W. Citta, Scott M. LoPresto, David A. Willming +2 more 2011-08-09 $649,000
7653126 Apparatus for and method of controlling the operation of an equalizer Xiaojun Yang, Jingsong Xia 2010-01-26 $2,364,000
7599433 Apparatus for and method of controlling a feedforward filter of an equalizer Jilian Zhu, Scott M. LoPresto, David A. Willming, Shidong Chen 2009-10-06 $3,703,000
6948184 System and method for calibrating power level during initial ranging of a network client device Timothy Del Sol 2005-09-20 $3,079,000
6084642 Receiver for adjusting sync levels in VSB systems 2000-07-04
5841820 Data comparison AGC system for VSB receiver Rudolf Turner 1998-11-24
5828404 VSB mode detection system with comb filter Rudolf Turner 1998-10-27
5764309 Sync compensated AGC system for VSB receiver Rudolf Turner 1998-06-09
5642154 Cable maintenance system Gary J. Sgrignoli 1997-06-24 $15,941,000
5638140 FPLL having AFC filter with limited phase shift Victor G. Mycynek, Gary J. Sgrignoli 1997-06-10 $5,397,000
5627604 Stabilizing the lock up of a bi-phase stable FPLL by augmenting a recovered DC pilot Victor G. Mycynek, Gary J. Sgrignoli 1997-05-06 $18,755,000
5621483 Polarity selection circuit for bi-phase stable FPLL Timothy G. Laud, Ronald Lee 1997-04-15 $10,832,000
5546138 AGC system with overriding, maximum gain during an initial interval to enhance signal acquisition Victor G. Mycynek, Gary J. Sgrignoli 1996-08-13 $15,864,000
5533070 Simplified complex multiplier in error tracking loop Ronald Lee 1996-07-02 $5,529,000
5533071 Error tracking loop incorporating simplified cosine look-up table Ronald Lee 1996-07-02 $5,529,000
5508748 Data level selection for multilevel VSB transmission system Timothy G. Laud 1996-04-16 $3,283,000
5410368 Carrier acquisition by applying substitute pilot to a synchronous demodulator during a start up interval Victor G. Mycynek, Gary J. Sgrignoli 1995-04-25 $1,815,000
5406587 Error tracking loop Thomas P. Horwitz, Ronald Lee 1995-04-11 $3,739,000
5018197 Secure video decoder system Gary A. Jones, Paul A. Snopko 1991-05-21 $680,000
4768229 Restrictive access control system Lester F. Benjamin, Jouke N. Rypkema 1988-08-30 $4,046,000
4649420 Automatic frequency response correction using color burst Gordon E. Kelly, Jouke N. Rypkema 1987-03-10 $2,182,000