Inventor · disambiguated record

Edmund R. Fredrick

Also filed as: FREDRICK EDMUND R

3 granted patents·46 citations·filing 1979–1981

71Inventor score

Technology areasE01C

Files withRAILROAD CONCRETE CROSSTIE COR3

Top patents by PatentIndex Score

3 records

0155US4449666AConcrete railroad tie for supporting grade crossing panelsRAILROAD CONCRETE CROSSTIE COR·Filed 1981·Granted May 22, 1984·21 cites·2 claims
0245US4267969ARailroad grade crossing constructionRAILROAD CONCRETE CROSSTIE COR·Filed 1979·Granted May 19, 1981·14 cites·12 claims
0336US4457468ARailroad grade crossing constructionRAILROAD CONCRETE CROSSTIE COR·Filed 1981·Granted Jul 3, 1984·11 cites·12 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →