Inventor · disambiguated record

John L. Hierbaum

Also filed as: HIERBAUM JOHN L

1 granted patent·54 citations·filing 2003–2003

49Inventor score

Technology areasA42B

Files withMINE SAFETY APPLIANCES CO1

Top patents by PatentIndex Score

1 record

0179US7110743B2Communications device for a protective helmetMINE SAFETY APPLIANCES CO·Filed 2003·Granted Sep 19, 2006·54 cites·33 claims

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John L. Hierbaum — Patent Inventor | PatentIndex