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USPTO Patent Rankings Data through Dec 31, 2025
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Clarence E. Hulbert, Jr. — 2 Patents

UNUnknown: 3 patents #7,366 of 83,584Top 9%
Muskogee, OK: #33 of 95 inventorsTop 35%
Oklahoma: #4,543 of 12,736 inventorsTop 40%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Clarence E. Hulbert, Jr. has been granted 2 US patents while listed as an inventor at Unknown. The first was granted in 1980 and the most recent in August 1981. Clarence E. Hulbert, Jr. ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Clarence E. Hulbert, Jr. in Muskogee, OK, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4282988 Apparatus for facilitating flow of solid particles by gravity through a container having an opening in the bottom thereof 1981-08-11
4240952 Method of making concrete from fly ash Liang-tseng Fan, Mufit Akinc 1980-12-23