Inventor · disambiguated record
Bjorn Eilertsen
Also filed as: EILERTSEN BJORN · EILERTSEN BJORN A
7 granted patents·1 pending application·111 citations·filing 1985–2014
85Inventor score
Files withWEST DRILLING PRODUCTS AS3ENG & DRILLING MACHINERY AS1HITEC AS1HITECH A S1HUGHES WILLIAM J1
Top patents by PatentIndex Score
8 records- 0169US6749408B1Piston pumpENG & DRILLING MACHINERY AS·Filed 2000·Granted Jun 15, 2004·13 cites·4 claims
- 0261US9822593B2Device for a pipe handling unit and method of inserting and withdrawing a pipe string in/from a boreholeWEST DRILLING PRODUCTS AS·Filed 2013·Granted Nov 21, 2017·2 cites·16 claims
- 0359US9777544B2Continuous drilling fluid circulation unit and arrangementWEST DRILLING PRODUCTS AS·Filed 2014·Granted Oct 3, 2017·2 cites·10 claims
- 0459US9725955B2Arrangement for continuous circulation of drilling fluid during drilling operationsWEST DRILLING PRODUCTS AS·Filed 2013·Granted Aug 8, 2017·2 cites·23 claims
- 0559US5244329AArrangement in a pipe handling systemHITEC AS·Filed 1990·Granted Sep 14, 1993·33 cites·18 claims
- 0653US4629014ADerrickOTC AS·Filed 1985·Granted Dec 16, 1986·35 cites·4 claims
- 0750US5437527AArrangement in a pipe handling systemHITECH A S·Filed 1993·Granted Aug 1, 1995·24 cites·3 claims
- 0827US2005252660A1Split ball valveHUGHES WILLIAM J·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →