Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert Walker — 5 Patents

Microsoft: 4 patents #10,758 of 40,388Top 30%
Seattle, WA: #5,850 of 21,776 inventorsTop 30%
Washington: #19,692 of 76,902 inventorsTop 30%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Robert Walker has been granted 5 US patents while listed as an inventor at Microsoft. The first was granted in 2003 and the most recent in July 2016. Robert Walker ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Robert Walker in Seattle, WA, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9399167 Virtual space mapping of a variable activity region Russell E. Glaser, Steven Michael Beeman, Peter Sarrett, Scott Jared Henson, John Clavin 2016-07-26 $72,995,000
8976986 Volume adjustment based on listener position Drew Angeloff, John Clavin 2015-03-10 $31,260,000
8493326 Controller with removably attachable text input device Greg Martinez, James R. Stewart, William P. Stiles, Richard S. Lum 2013-07-23 $26,254,000
7283125 Text input device and adapter mechanism Greg Martinez, William P. Stiles, Richard S. Lum 2007-10-16 $16,447,000
6618665 Cold start pulse width compensation Michael Beyene, Suresh L. Satyavolu 2003-09-09