Inventor · disambiguated record
Johannes A. Frankena
Also filed as: FRANKENA JOHANNES A · FRANKENA JOHANNES ALBERT
4 granted patents·55 citations·filing 1987–2008
74Inventor score
Top patents by PatentIndex Score
4 records- 0166US4785190AIrradiation devicePHILIPS CORP·Filed 1987·Granted Nov 15, 1988·30 cites·3 claims
- 0256US4866284AIrradiation devicePHILIPS CORP·Filed 1988·Granted Sep 12, 1989·21 cites·6 claims
- 0342US8304998B2Dimmable light generating deviceTAEKEMA HARKO JAN·Filed 2008·Granted Nov 6, 2012·0 cites·21 claims
- 0419US4950903AIrradiation deviceFRANKENA JOHANNES A·Filed 1989·Granted Aug 21, 1990·4 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →