Inventor · disambiguated record
Steffen Evertsen
Also filed as: EVERTSEN STEFFEN
8 granted patents·14 citations·filing 2012–2020
79Inventor score
Technology areasE21B
Top patents by PatentIndex Score
8 records- 0170US10781653B2Method of removing a downhole casingARDYNE HOLDINGS LTD·Filed 2017·Granted Sep 22, 2020·2 cites·14 claims
- 0269US10392901B2Downhole tool method and deviceWELLBORE AS·Filed 2014·Granted Aug 27, 2019·5 cites·21 claims
- 0369US9695658B2Pulling toolWELLTEC AS·Filed 2012·Granted Jul 4, 2017·4 cites·20 claims
- 0463US10907432B2Apparatus for removing a section of casing or lining from a well-bore, and methodsARDYNE HOLDINGS LTD·Filed 2017·Granted Feb 2, 2021·1 cites·19 claims
- 0555US11193343B2Method of removing a downhole casingARDYNE HOLDINGS LTD·Filed 2020·Granted Dec 7, 2021·0 cites·12 claims
- 0654US9683425B2Downhole injection toolWELLTEC AS·Filed 2012·Granted Jun 20, 2017·1 cites·16 claims
- 0750US10030457B2Downhole tool stop device and method for use of sameARDYNE AS·Filed 2014·Granted Jul 24, 2018·1 cites·11 claims
- 0849US11613951B2Or relating to well abandonment and slot recoveryARDYNE HOLDINGS LTD·Filed 2019·Granted Mar 28, 2023·0 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →