Inventor · disambiguated record
Karl-Axel Stjernstrom
Also filed as: STJERNSTROEM KARL-AX · STJERNSTROEM KARL-AXEL · STJERNSTROM KARL A · STJERNSTROM KARL AXEL
3 granted patents·2 pending applications·100 citations·filing 1991–2002
73Inventor score
Technology areasE21B
Top patents by PatentIndex Score
5 records- 0176US5259469ADrilling tool for percussive and rotary drillingUNIROC AB·Filed 1991·Granted Nov 9, 1993·83 cites·12 claims
- 0229US5785360AThread coupling for drill string elements for percussive drillingUNIROC AB·Filed 1995·Granted Jul 28, 1998·11 cites·16 claims
- 0327US6003622ADrill tube for use in upward rock drillingUNIROC AB·Filed 1997·Granted Dec 21, 1999·6 cites·2 claims
- 0427US2005045385A1Down-the-hole drill hammerFiled 2002·Application pending·0 cites
- 0527US2006000645A1DriverSTJERNSTROM KARL A·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →