Inventor · disambiguated record
Ralph Lagergren
Also filed as: LAGERGREN RALPH · LAGERGREN RALPH E
3 granted patents·3 pending applications·57 citations·filing 1997–2007
73Inventor score
Top patents by PatentIndex Score
6 records- 0171US5971642AWriting instrument with finger retainerNORTHSTAR LP·Filed 1997·Granted Oct 26, 1999·25 cites·13 claims
- 0271US5944433APivotal finger retainer for writing instrumentFiled 1998·Granted Aug 31, 1999·24 cites·14 claims
- 0348US2007259741A1Method for a court ball gameLAGERGREN RALPH·Filed 2007·Application pending·0 cites
- 0446USD389185SWriting instrument with finger retainerNORTH STAR L P·Filed 1997·Granted Jan 13, 1998·8 cites·1 claims
- 0546US2007213146A1Apparatus and method for a court ball gameLAGERGREN RALPH·Filed 2006·Application pending·0 cites
- 0635US2005069371A1Normally handheld instruments allowing normal fingertip activityFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →