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USPTO Patent Rankings Data through Dec 31, 2025
JD

John D. Downs — 7 Patents

Shell Oil Compny: 3 patents #1,070 of 4,423Top 25%
AMA.E. Staley Manufacturing: 1 patents #83 of 160Top 55%
University Of Texas System: 1 patents #2,951 of 6,559Top 45%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
John D. Downs has been granted 7 US patents while listed as an inventor at Shell Oil Compny. The first was granted in 1984 and the most recent in May 2018. John D. Downs ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list John D. Downs in Woodhall Spa, IL, GB.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9957439 Fracturing fluid for prevention of shale fracture hydration during well stimulation by hydraulic fracturing Eric van Oort 2018-05-01
9777208 Hydrocarbon-based drilling fluids containing cesium phosphate Siv K. Howard 2017-10-03
4965979 Concrete block wall Ronald J. Larrivee 1990-10-30
4758356 Process for preparing Xanthomonas heteropolysaccharides 1988-07-19
4752580 Process for preparing Xanthomonas heteropolysaccharides 1988-06-21
4713436 Glycoside-containing polyester preparation process Raymond L. Drury, Jr., Kenneth B. Moser, C. Deane Roth 1987-12-15 $4,586,000
4481294 Process for cell disruption 1984-11-06 $40,991,000