Inventor · disambiguated record

John D. Hatfield

Also filed as: HATFIELD JOHN D · WALTERS HENRY K JR

2 granted patents·34 citations·filing 1978–2008

62Inventor score

Technology areasC01B F21Y

Files withHATFIELD JOHN D1 U S OF AMERICA TVA1

Top patents by PatentIndex Score

2 records

0168US4152402APartial purification of wet-process phosphoric acid with acetone and ammoniaU S OF AMERICA TVA·Filed 1978·Granted May 1, 1979·18 cites·8 claims
0264US7972027B1Illuminated doorHATFIELD JOHN D·Filed 2008·Granted Jul 5, 2011·16 cites·4 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →