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USPTO Patent Rankings Data through Dec 31, 2025
HH

Harold J. Hill — 1 Patent

Shell Oil Compny: 1 patents #2,223 of 4,423Top 55%
Houston, TX: #12,430 of 21,073 inventorsTop 60%
Texas: #74,151 of 125,132 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Harold J. Hill has been granted 1 US patent while listed as an inventor at Shell Oil Compny. All of these patents were granted in 1981. Harold J. Hill ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Harold J. Hill in Houston, TX, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4279305 Process for stimulating a well with a saline surfactant sulfate, alkanol and acid system Randolph H. Knapp, Jimmie B. Lawson, Joseph Reisberg, David R. Thigpen 1981-07-21 $14,298,000