Inventor · disambiguated record
Francis J. Yopak
Also filed as: YOPAK FRANCIS J
2 granted patents·1 pending application·31 citations·filing 1998–2007
60Inventor score
Top patents by PatentIndex Score
3 records- 0166US6354482B1Friction welderUNITED TECHNOLOGIES CORP·Filed 1998·Granted Mar 12, 2002·28 cites·7 claims
- 0244US6572006B2Friction welderUNITED TECHNOLOGIES CORP·Filed 2001·Granted Jun 3, 2003·3 cites·6 claims
- 0335US2009308731A1Gasification processZABOLOTNY ERNEST R·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →