Inventor · disambiguated record
John C. Haspert
Also filed as: HASPERT JOHN C
3 granted patents·43 citations·filing 1976–1981
70Inventor score
Technology areasE21C
Top patents by PatentIndex Score
3 records- 0176US4280732AMethod and apparatus for miningUNITED STATES PIPE FOUNDRY·Filed 1979·Granted Jul 28, 1981·22 cites·34 claims
- 0249US4506931AMethod and apparatus for miningUNITED STATES PIPE FOUNDRY·Filed 1981·Granted Mar 26, 1985·17 cites·6 claims
- 0331US4062594AReciprocating drive method of mining and apparatus thereforHASPERT JOHN C·Filed 1976·Granted Dec 13, 1977·4 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →