Inventor · disambiguated record
Archibald W. Fletcher
Also filed as: FLETCHER ARCHIBALD W
4 granted patents·51 citations·filing 1983–1990
77Inventor score
Top patents by PatentIndex Score
4 records- 0174US4536214AMetal sulphide extractionDUVAL CORP·Filed 1983·Granted Aug 20, 1985·19 cites·23 claims
- 0262US4518418AElectron beam refinement of metals, particularly copperDUVAL CORP·Filed 1983·Granted May 21, 1985·11 cites·31 claims
- 0355US5196095AProcess for recovering a metal from an aqueous solution comprising a mixture of metal chloridesHENKEL CORP·Filed 1990·Granted Mar 23, 1993·10 cites·21 claims
- 0434US4475771ACyclic solution mining of borate oresDUVAL CORP·Filed 1983·Granted Oct 9, 1984·11 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →