Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Inventors › John Doan
JD

John Doan — 1 Patent

Olney, IL: #23 of 39 inventorsTop 60%
Illinois: #49,230 of 84,256 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
John Doan has been granted 1 US patent. All of these patents were granted in 1991. John Doan ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list John Doan in Olney, IL, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5040608 Anchorable pack-off assembly and method of seating the same — 1991-08-20

Nearby-Ranked Inventors

Andrew Whitesides Lloyd1
Xianwu Meng1
Phillip COLETTI1
Yuchen Mao1
Sheng'an ZHANG1
Hayeong Nam1
Pedro Fernando Gomez Fernandez1
Kira Astakhova1
Amir EISEN1