Inventor · disambiguated record
David A. Chatfield
Also filed as: CHATFIELD DAVID A
4 granted patents·67 citations·filing 1975–1980
76Inventor score
Files withNAT STEEL CORP4
Top patents by PatentIndex Score
4 records- 0187US4159218AMethod for producing a dual-phase ferrite-martensite steel stripNAT STEEL CORP·Filed 1978·Granted Jun 26, 1979·29 cites·10 claims
- 0279US4000009AWrought pure grade aluminum alloy and process for producing sameNAT STEEL CORP·Filed 1975·Granted Dec 28, 1976·17 cites·44 claims
- 0371US4407679AMethod of producing high tensile aluminum-magnesium alloy sheet and the products so obtainedNAT STEEL CORP·Filed 1980·Granted Oct 4, 1983·20 cites·16 claims
- 0418US4251294AMethod for producing fully-processed low-carbon electrical steelNAT STEEL CORP·Filed 1978·Granted Feb 17, 1981·1 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →