Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert C. Ayers — 2 Patents

Des Moines, IA: #250 of 657 inventorsTop 40%
Iowa: #6,154 of 15,303 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Robert C. Ayers has been granted 2 US patents. The first was granted in 1987 and the most recent in April 1991. Robert C. Ayers ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert C. Ayers in Des Moines, IA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5004259 Rocking wheelchair Ted Lee 1991-04-02
4641848 Wheelchair with rocking seat assembly 1987-02-10