Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Roger Spall — 4 Patents

IBM: 4 patents #21,783 of 70,183Top 35%
North York, CA: #145 of 630 inventorsTop 25%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Roger Spall has been granted 4 US patents while listed as an inventor at IBM. The first was granted in 1996 and the most recent in October 2001. Roger Spall ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Roger Spall in North York, ON, CA.

Patents per Year

Patents granted per year, 1996 to 2001Bar chart with a peak of 2 patents in 1996.peak 21996: 2 patents19961997: 1 patents19972001: 1 patents2001

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6310631 User interface control for creating split panes in a single window Robert Cecco, Eduardus A. T. Merks, Michael Wulkan 2001-10-30 $34,081,000
5689668 Dynamic hierarchical selection menu Phillip Beaudet, Matthew Black, Jonathan William Edwards, Julian Hamilton Jones, Eduardus A. T. Merks 1997-11-18 $30,996,000
5559945 Dynamic hierarchical selection menu Phillip Beaudet, Matthew Black, Jonathan William Edwards, Julian Hamilton Jones, Eduardus A. T. Merks 1996-09-24 $13,669,000
5491795 Window management system with a hierarchical iconic array and miniature windows Phillip Beaudet, Eduardus A. T. Merks, Martin Rendall 1996-02-13 $8,744,000