Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Matthew E. Chappell — 2 Patents

Keizer, OR: #12 of 55 inventorsTop 25%
Oregon: #12,752 of 28,073 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Matthew E. Chappell has been granted 2 US patents. The first was granted in 2002 and the most recent in October 2025. Matthew E. Chappell ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Matthew E. Chappell in Keizer, OR, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12439436 Wireless channel control using client feedback Michael Overcash, Yousef Wasef Nijim 2025-10-07
6491277 Music holding device for a piano Perry W. Chappell 2002-12-10