Inventor · disambiguated record
John Crowell
Also filed as: CROWELL JOHN · CROWELL JOHN M · CROWELL JOHN MARK
7 granted patents·135 citations·filing 1978–2009
87Inventor score
Files withWESTERN ATLAS INT INC2HUGHES TOOL CO1I O EXPLORATION PRODUCTS U S A1INOVA LTD1INPUT OUTPUT INC1
Top patents by PatentIndex Score
7 records- 0179US7628248B2Apparatus and method for generating a seismic source signalINPUT OUTPUT INC·Filed 2007·Granted Dec 8, 2009·13 cites·31 claims
- 0278US4147215AIndependently powered breakout apparatus and method for a sectional drill stringHUGHES TOOL CO·Filed 1978·Granted Apr 3, 1979·46 cites·14 claims
- 0369US4718049APre-loaded vibrator assembly with mechanical lockWESTERN ATLAS INT INC·Filed 1986·Granted Jan 5, 1988·32 cites·6 claims
- 0461US7987943B2Apparatus and method for generating a seismic source signalINOVA LTD·Filed 2009·Granted Aug 2, 2011·4 cites·32 claims
- 0545US5666328AThree axis seismic vibratorI O EXPLORATION PRODUCTS U S A·Filed 1996·Granted Sep 9, 1997·21 cites·12 claims
- 0641US4658222ARadiation detector spectrum simulatorUS ENERGY·Filed 1985·Granted Apr 14, 1987·5 cites·20 claims
- 0739US5401919ARemovable piston bore liner for hydraulically actuated seismic vibratorWESTERN ATLAS INT INC·Filed 1994·Granted Mar 28, 1995·14 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when John Crowell files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →