Assignee
BLACKHAWK SPECIALTY TOOLS LLC
US·12 granted patents·5 pending applications·20 citations·filing 2013–2020
Top patents by PatentIndex Score
17 records- 0181US9605505B2Method and apparatus for performing cementing operationsBLACKHAWK SPECIALTY TOOLS LLC·Filed 2015·Granted Mar 28, 2017·3 cites·18 claims
- 0280US9328585B2Large bore auto-fill float equipmentBLACKHAWK SPECIALTY TOOLS LLC·Filed 2015·Granted May 3, 2016·5 cites·10 claims
- 0378US9127519B2Well centralizerBLACKHAWK SPECIALTY TOOLS LLC·Filed 2013·Granted Sep 8, 2015·6 cites·12 claims
- 0470US9297218B2Well centralizerBLACKHAWK SPECIALTY TOOLS LLC·Filed 2015·Granted Mar 29, 2016·2 cites·16 claims
- 0566US10041310B2Method and apparatus for automated connection of a fluid conduitBLACKHAWK SPECIALTY TOOLS LLC·Filed 2017·Granted Aug 7, 2018·1 cites·16 claims
- 0665US9500060B2Method and apparatus for performing cementing operations on top drive rigsBLACKHAWK SPECIALTY TOOLS LLC·Filed 2014·Granted Nov 22, 2016·2 cites·5 claims
- 0764US10570675B2Method and apparatus for wellbore centralizationBLACKHAWK SPECIALTY TOOLS LLC·Filed 2017·Granted Feb 25, 2020·1 cites·20 claims
- 0853US10619428B2Method and apparatus for automated connection of a fluid conduitBLACKHAWK SPECIALTY TOOLS LLC·Filed 2018·Granted Apr 14, 2020·0 cites·17 claims
- 0949US2015159457A1Automated connection assemblyBLACKHAWK SPECIALTY TOOLS LLC·Filed 2014·Application pending·0 cites
- 1048US9689216B2Method and apparatus for automated connection of a fluid conduitBLACKHAWK SPECIALTY TOOLS LLC·Filed 2016·Granted Jun 27, 2017·0 cites·6 claims
- 1146US9488032B2Method and apparatus for retaining a valve to a cement headBLACKHAWK SPECIALTY TOOLS LLC·Filed 2014·Granted Nov 8, 2016·0 cites·4 claims
- 1244US9677351B2Method and apparatus for anchoring casing and other tubular goodsBLACKHAWK SPECIALTY TOOLS LLC·Filed 2013·Granted Jun 13, 2017·0 cites·19 claims
- 1342US2015308213A1Method and apparatus for catching darts and other dropped objectsBLACKHAWK SPECIALTY TOOLS LLC·Filed 2015·Application pending·0 cites
- 1440US11225841B2Method and apparatus for wellbore centralizationBLACKHAWK SPECIALTY TOOLS LLC·Filed 2020·Granted Jan 18, 2022·0 cites·20 claims
- 1539US2013292135A1Method and Apparatus for Launching Objects in Dual Gradient SystemsBLACKHAWK SPECIALTY TOOLS LLC·Filed 2013·Application pending·0 cites
- 1635US2014041859A1Reversible ported sub assemblyBLACKHAWK SPECIALTY TOOLS LLC·Filed 2013·Application pending·0 cites
- 1730US2018045017A1Slip Assembly for Anchoring Downhole Plugs and RetainersBLACKHAWK SPECIALTY TOOLS LLC·Filed 2017·Application pending·0 cites
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