Inventor · disambiguated record
Per Slettedal
Also filed as: SLETTEDAL PER
5 granted patents·2 pending applications·180 citations·filing 1987–2017
81Inventor score
Technology areasE21B
Top patents by PatentIndex Score
7 records- 0187US4822230APipe handling apparatusMARITIME HYDRAULICS AS·Filed 1987·Granted Apr 18, 1989·110 cites·6 claims
- 0274US6860694B2Horizontal pipe handling deviceMARITIME HYDRAULICS AS·Filed 2001·Granted Mar 1, 2005·50 cites·22 claims
- 0346US7437974B2Rotation unit for torque tong comprising a gripping cylinderAKER KVAERNER MH AS·Filed 2004·Granted Oct 21, 2008·11 cites·17 claims
- 0445US10801279B2Fingerboard storage arrangementMHWIRTH AS·Filed 2017·Granted Oct 13, 2020·0 cites·20 claims
- 0544US7387050B2Rotation unit for torque tong comprising a rotational part with teethAKER KVAERNER MH AS·Filed 2004·Granted Jun 17, 2008·9 cites·10 claims
- 0639US2008250902A1Rotation unit for torque tong comprising a rotational part with teethSLETTEDAL PER·Filed 2008·Application pending·0 cites
- 0729US2004217612A1Gripping claw for tubular goodsFiled 2002·Application pending·0 cites
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