Inventor · disambiguated record

Ralph D. Heifner

Also filed as: HEIFNER RALPH D

2 granted patents·89 citations·filing 1980–1983

67Inventor score

Technology areasC22B

Files withANACONDA CO1 ATLANTIC RICHFIELD CO1

Top patents by PatentIndex Score

2 records

0191US4386956AMetal recovery process from aluminum drossANACONDA CO·Filed 1980·Granted Jun 7, 1983·57 cites·18 claims
0286US4527779AMetal recovery compression mechanismATLANTIC RICHFIELD CO·Filed 1983·Granted Jul 9, 1985·32 cites·13 claims

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Ralph D. Heifner — Patent Inventor | PatentIndex