Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert F. Walker — 22 Patents

IBM: 21 patents #5,188 of 70,183Top 8%
PEPegasystems: 1 patents #22 of 38Top 60%
South Burlington, VT: #107 of 1,136 inventorsTop 10%
Vermont: #357 of 4,968 inventorsTop 8%
Overall (All Time): #189,202 of 4,157,543Top 5%
22 Patents All Time
Robert F. Walker has been granted 22 US patents while listed as an inventor at IBM. The first was granted in 1985 and the most recent in January 2023. Robert F. Walker ranks #189,202 of 4,157,543 US inventors in our database (top 4.6%). Patent records list Robert F. Walker in South Burlington, VT, US.

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11567945 Customized digital content generation systems and methods Maarten A. Keijzer, Vincent Jeffs, Shoel Perelman, Victor E. Khatutsky 2023-01-31 $41,591,000
8464189 Technology migration for integrated circuits with radical design restrictions Robert J. Allen, Cam V. Endicott, Fook-Luen Heng, Jason D. Hibbeler, Kevin W. McCullen +2 more 2013-06-11 $11,699,000
7895562 Adaptive weighting method for layout optimization with multiple priorities Michael S. Gray, Matthew T. Guzowski, Kevin W. McCullen, Xiaoping Tang, Xin Yuan 2011-02-22 $3,876,000
7882463 Integrated circuit selective scaling Fook-Luen Heng, Jason D. Hibbeler, Kevin W. McCullen, Rani Narayan, Stephen L. Runyon 2011-02-01 $3,711,000
7865848 Layout optimization using parameterized cells Veit Gernhoefer, Michael S. Gray, Matthew T. Guzowski, Jason D. Hibbeler, Stephen L. Runyon +1 more 2011-01-04 $2,931,000
7818694 IC layout optimization to improve yield Robert J. Allen, Faye D. Baker, Albert M. Chu, Michael S. Gray, Jason D. Hibbeler +2 more 2010-10-19 $3,706,000
7761821 Technology migration for integrated circuits with radical design restrictions Robert J. Allen, Cam V. Endicott, Fook-Luen Heng, Jason D. Hibbeler, Kevin W. McCullen +2 more 2010-07-20 $3,139,000
7752589 Method, apparatus, and computer program product for displaying and modifying the critical area of an integrated circuit design Robert J. Allen, Sarah C. Braasch, Matthew T. Guzowski, Jason D. Hibbeler, Daniel N. Maynard +3 more 2010-07-06 $3,063,000
7735042 Context aware sub-circuit layout modification Michael S. Gray, Matthew T. Guzowski, Jason D. Hibbeler, Kevin W. McCullen, Xin Yuan 2010-06-08 $3,517,000
7610565 Technology migration for integrated circuits with radical design restrictions Robert J. Allen, Cam V. Endicott, Fook-Luen Heng, Jason D. Hibbeler, Kevin W. McCullen +2 more 2009-10-27 $16,602,000
7568173 Independent migration of hierarchical designs with methods of finding and fixing opens during migration Veit Gernhoefer, Matthew T. Guzowski, Jason D. Hibbeler, Kevin W. McCullen, Rani Narayan +5 more 2009-07-28 $11,761,000
7503020 IC layout optimization to improve yield Robert J. Allen, Faye D. Baker, Albert M. Chu, Michael S. Gray, Jason D. Hibbeler +2 more 2009-03-10 $6,331,000
7484197 Minimum layout perturbation-based artwork legalization with grid constraints for hierarchical designs Robert J. Allen, Michael S. Gray, Fook-Luen Heng, Jason D. Hibbeler, Kevin W. McCullen +2 more 2009-01-27 $4,993,000
7454721 Method, apparatus and computer program product for optimizing an integrated circuit layout Jason D. Hibbeler, Rani Narayan 2008-11-18 $4,805,000
7363601 Integrated circuit selective scaling Fook-Luen Heng, Jason D. Hibbeler, Kevin W. McCullen, Rani Narayan, Stephen L. Runyon 2008-04-22 $8,943,000
7302651 Technology migration for integrated circuits with radical design restrictions Robert J. Allen, Cam V. Endicott, Fook-Luen Heng, Jason D. Hibbeler, Kevin W. McCullen +2 more 2007-11-27 $7,635,000
7260790 Integrated circuit yield enhancement using Voronoi diagrams Robert J. Allen, Michael S. Gray, Jason D. Hibbeler, Mervyn Y. Tan 2007-08-21 $7,896,000
7257783 Technology migration for integrated circuits with radical design restrictions Robert J. Allen, Cam V. Endicott, Fook-Luen Heng, Jason D. Hibbeler, Kevin W. McCullen +2 more 2007-08-14 $10,148,000
7120887 Cloned and original circuit shape merging Henry A. Bonges, III, Michael S. Gray, Jason D. Hibbeler, Kevin W. McCullen 2006-10-10 $5,276,000
7117456 Circuit area minimization using scaling Michael S. Gray, Kevin W. McCullen, Gustavo E. Tellez 2006-10-03 $4,350,000
7062729 Method and system for obtaining a feasible integer solution from a half-integer solution in hierarchical circuit layout optimization Michael S. Gray, Jason D. Hibbeler, Gustavo E. Tellez 2006-06-13 $6,535,000
4516266 Entity control for raster displays Robert J. Christopher 1985-05-07 $29,981,000