Inventor · disambiguated record
Leon Keith Jantzen
Also filed as: JANTZEN LEON K · JANTZEN LEON KEITH
4 granted patents·3 pending applications·46 citations·filing 1991–2017
72Inventor score
Files withCANADIAN FRACMASTER LTD1JANTZEN LEON K1JANTZEN LEON KEITH1NABORS DRILLING TECH USA INC1NOETIC TECHNOLOGIES INC1
Top patents by PatentIndex Score
7 records- 0174US7967541B2Apparatus for handling and racking pipesWEATHERFORD CANADA PARTNERSHIP·Filed 2009·Granted Jun 28, 2011·16 cites·12 claims
- 0248US8118340B2Remotely-operated rope-threading toolJANTZEN LEON KEITH·Filed 2009·Granted Feb 21, 2012·2 cites·23 claims
- 0346US10221634B2Catwalk system and methodNABORS DRILLING TECH USA INC·Filed 2016·Granted Mar 5, 2019·0 cites·10 claims
- 0444US5279364AGuide arch for tubingCANADIAN FRACMASTER LTD·Filed 1991·Granted Jan 18, 1994·28 cites·4 claims
- 0540US2010132520A1Method and apparatus for slotting tubular steelNOETIC TECHNOLOGIES INC·Filed 2008·Application pending·0 cites
- 0635US2017314330A1Swivel joint system and methodTESCO CORP·Filed 2017·Application pending·0 cites
- 0734US2009279987A1Pipe handling unitJANTZEN LEON K·Filed 2009·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →