Inventor · disambiguated record
Frank Welzel
Also filed as: WELZEL FRANK
3 granted patents·7 citations·filing 2006–2009
58Inventor score
Top patents by PatentIndex Score
3 records- 0148US8072728B2Overvoltage protection deviceWILLMANN JENS·Filed 2009·Granted Dec 6, 2011·3 cites·15 claims
- 0242US7335029B2Circuit board with shielded connectionPHOENIX CONTACT GMBH & CO·Filed 2006·Granted Feb 26, 2008·4 cites·5 claims
- 0340US7995348B2Surge protector with a mounting basePHOENIX CONTACT GMBH & CO·Filed 2008·Granted Aug 9, 2011·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →