Inventor · disambiguated record

Joann Sperl-Hillen

Also filed as: SPERL-HILLEN JOANN M

1 granted patent·1 pending application·2 citations·filing 2006–2006

18Inventor score

Technology areasG09B

Files withBILTZ GEORGE R1 O'CONNOR PATRICK1

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2 records

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