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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert E. Shirley — 4 Patents

IBM: 4 patents #21,783 of 70,183Top 35%
Boulder, CO: #1,557 of 5,018 inventorsTop 35%
Colorado: #10,815 of 40,980 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Robert E. Shirley has been granted 4 US patents while listed as an inventor at IBM. The first was granted in 1983 and the most recent in June 2011. Robert E. Shirley ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Robert E. Shirley in Boulder, CO, US.

Patents per Year

Patents granted per year, 1983 to 2011Bar chart with a peak of 1 patents in 1983.peak 11983: 1 patents19832007: 1 patents20072008: 1 patents20082011: 1 patents2011

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7956873 Image rotation with substantially no aliasing error Ravi Prakash, Clair F. Rohe 2011-06-07 $3,978,000
7411593 Image rotation with substantially no aliasing error Ravi Prakash, Clair F. Rohe 2008-08-12 $8,244,000
7284077 Peripheral interface system having dedicated communication channels Michael A. Duncan, Jeffrey E. Journey, Dennis D. Leak, Robert R. Plyler, William W. Plyler +1 more 2007-10-16 $5,691,000
4394693 System and method for generating enlarged or reduced images 1983-07-19 $18,760,000