Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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William E. Stelzel — 2 Patents

Microsoft: 2 patents #17,644 of 40,388Top 45%
Issaquah, WA: #916 of 1,767 inventorsTop 55%
Washington: #35,700 of 76,902 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
William E. Stelzel has been granted 2 US patents while listed as an inventor at Microsoft. All of these patents were granted in 2010. William E. Stelzel ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list William E. Stelzel in Issaquah, WA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7698223 Pluggable file-based digital rights management API layer for applications and engines Andrew D. Padawer, Katharine Holdsworth, Miguel A. Claudio, Scott R. Shell 2010-04-13 $18,577,000
7657574 Persistent storage file change tracking Anoop Gupta, Anh P. Tran, Gary W. Hall 2010-02-02 $25,278,000