Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Ivor Simpson — 2 Patents

Compton, CA: #31 of 111 inventorsTop 30%
California: #187,151 of 386,348 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Ivor Simpson has been granted 2 US patents. The first was granted in 2000 and the most recent in September 2021. Ivor Simpson ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Ivor Simpson in Compton, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11120578 Method of color matching using reference indicators Tony Polichroniadis 2021-09-14
D427321 Plastic fence 2000-06-27