Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert Walker — 21 Patents

SYSynopsys: 15 patents #39 of 2,302Top 2%
Intel: 5 patents #7,234 of 30,777Top 25%
Boulder, CO: #296 of 5,018 inventorsTop 6%
Colorado: #1,830 of 40,980 inventorsTop 5%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
Robert Walker has been granted 21 US patents while listed as an inventor at Synopsys. The first was granted in 1997 and the most recent in March 2021. Robert Walker ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Robert Walker in Boulder, CO, US.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10936772 Methods for incremental circuit physical synthesis Mahesh A. Iyer, Vasudeva M. Kamath 2021-03-02
10339241 Methods for incremental circuit design legalization during physical synthesis Mahesh A. Iyer 2019-07-02
10296701 Retiming with fixed power-up states Mahesh A. Iyer, Vasudeva M. Kamath 2019-05-21
10255404 Retiming with programmable power-up states Mahesh A. Iyer, Vasudeva M. Kamath 2019-04-09
10162918 Integrated circuit retiming with selective modeling of flip-flop secondary signals Mahesh A. Iyer, Vasudeva M. Kamath 2018-12-25
9189583 Look-up based buffer tree synthesis Sanjay Dhar, Kok Kiong Lee, Sanjay V. Kumar, Prashant Saxena 2015-11-17 $4,921,000
8621408 Progressive circuit evaluation for circuit optimization Mahesh A. Iyer, Sudipto Kundu 2013-12-31 $10,449,000
8578321 Delta-slack propagation for circuit optimization Mahesh A. Iyer 2013-11-05 $6,518,000
8527927 Zone-based area recovery in electronic design automation Mahesh A. Iyer 2013-09-03 $3,459,000
8418116 Zone-based optimization framework for performing timing and design rule optimization Mahesh A. Iyer, Amir H. Mottaez 2013-04-09 $4,983,000
8266570 Density-based area recovery in electronic design automation Mahesh A. Iyer 2012-09-11 $2,907,000
6539536 Electronic design automation system and methods utilizing groups of multiple cells having loop-back connections for modeling port electrical characteristics Harbinder Singh, Denis Martin, Srinivas Ajjarapu 2003-03-25 $32,777,000
6106568 Hierarchical scan architecture for design for test applications James Beausang, Chris Ellingham, Markus F. Robinson 2000-08-22 $33,109,000
6067650 Method and apparatus for performing partial unscan and near full scan within design for test applications James Beausang, Kenneth D. Wagner 2000-05-23 $38,837,000
6058252 System and method for generating effective layout constraints for a circuit design or the like Mark D. Noll, Kenneth E. Scott 2000-05-02 $19,031,000
5949692 Hierarchical scan architecture for design for test applications James Beausang, Chris Ellingham, Markus F. Robinson 1999-09-07 $27,713,000
5911493 Illuminated umbrella Leslie Ronald Wittenberg 1999-06-15
5903466 Constraint driven insertion of scan logic for implementing design for test within an integrated circuit design James Beausang, Chris Ellingham 1999-05-11 $15,026,000
5831868 Test ready compiler for design for test synthesis James Beausang 1998-11-03 $40,458,000
5703789 Test ready compiler for design for test synthesis James Beausang 1997-12-30 $28,047,000
5696771 Method and apparatus for performing partial unscan and near full scan within design for test applications James Beausang, Kenneth D. Wagner 1997-12-09 $16,759,000