Inventor · disambiguated record

Calvin W. Schalk

Also filed as: SCHALK CALVIN W

1 granted patent·1 pending application·66 citations·filing 1988–2009

50Inventor score

Technology areasB21D B23K

Files withMORRIS WAYNE STUART1 WILLIAMS INT CORP1

Top patents by PatentIndex Score

2 records

0182US4835357ASheet metal laser weldingWILLIAMS INT CORP·Filed 1988·Granted May 30, 1989·66 cites·5 claims
0240US2011061846A1Method of producing a very light weight finned tube heat exchangerMORRIS WAYNE STUART·Filed 2009·Application pending·0 cites

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