Inventor · disambiguated record
James Kerwin Mcdowell
Also filed as: MCDOWELL JAMES · MCDOWELL JAMES KERWIN
28 granted patents·4 pending applications·222 citations·filing 1993–2022
96Inventor score
Top patents by PatentIndex Score
32 records- 0198US9068584B2Apparatus and methods for connecting matsNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2013·Granted Jun 30, 2015·24 cites·16 claims
- 0293US10266994B2Apparatus and methods for connecting components of a support surfaceNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2016·Granted Apr 23, 2019·15 cites·20 claims
- 0393US9985390B2Electrically groundable support surface and related methodsNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2017·Granted May 29, 2018·9 cites·41 claims
- 0493US9337586B2Apparatus and methods for electrically grounding a load-supporting surfaceNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2014·Granted May 10, 2016·22 cites·28 claims
- 0592US9972942B1Apparatus and methods for insulating an electrically-groundable support surfaceNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2017·Granted May 15, 2018·12 cites·50 claims
- 0692US9735510B2Apparatus and methods for electrically grounding at least one mat in a load-supporting surfaceNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2016·Granted Aug 15, 2017·9 cites·22 claims
- 0792US9368918B2Apparatus and methods for electrically grounding a load-supporting surfaceNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2015·Granted Jun 14, 2016·11 cites·40 claims
- 0891US9212746B2Apparatus and methods for sealing between adjacent components of a load-supporting surfaceNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2013·Granted Dec 15, 2015·16 cites·15 claims
- 0991US9039325B2Liquid containment system for use with load-supporting surfacesNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2013·Granted May 26, 2015·12 cites·27 claims
- 1090US11059666B2Large-capacity modular holding container and related methodsNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2018·Granted Jul 13, 2021·11 cites·11 claims
- 1190US10513389B1Methods of preventing liquids from leaking off of a support surfaceNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2018·Granted Dec 24, 2019·4 cites·20 claims
- 1289US9745124B2Liquid containment systemNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2015·Granted Aug 29, 2017·5 cites·32 claims
- 1387US10024075B2Apparatus, system and methods for supporting one or more upright items from a support surfaceNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2016·Granted Jul 17, 2018·8 cites·26 claims
- 1483US9637871B2Load-supporting surface with actively connected gap seals and related apparatus and methodsNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2015·Granted May 2, 2017·2 cites·28 claims
- 1579US10124956B2Liquid containment system that accommodates vehicle ingress and egressNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2017·Granted Nov 13, 2018·2 cites·20 claims
- 1676US10639775B2Systems, apparatus and methods for manipulating a ground cover attachment pinNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2018·Granted May 5, 2020·2 cites·30 claims
- 1774US5363869APaint roller cleaning assemblyMCDOWELL JAMES·Filed 1993·Granted Nov 15, 1994·45 cites·8 claims
- 1872US10355417B1Apparatus and methods for electrically coupling multiple electrically-conductive ground coversNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2018·Granted Jul 16, 2019·2 cites·34 claims
- 1971US9605392B2Load-supporting surface with redundant interfacing gap seal members and related methodsNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2016·Granted Mar 28, 2017·2 cites·4 claims
- 2071US9404227B2Load-supporting surface with interfacing gap seal members and related apparatus and methodsNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2015·Granted Aug 2, 2016·2 cites·22 claims
- 2170US12378731B2Overlapping modular mat system including mat components having fortifying membersNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2022·Granted Aug 5, 2025·0 cites·20 claims
- 2268US9790758B2Apparatus and methods for mechanically coupling a sealing system around the opening to cellar formed around a hydrocarbon exploration or production wellNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2015·Granted Oct 17, 2017·2 cites·21 claims
- 2366US10340637B1Electrically conductive support surface and related methodsNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2018·Granted Jul 2, 2019·1 cites·25 claims
- 2466US9430943B2Apparatus and methods for providing illuminated signals from a support surfaceNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2014·Granted Aug 30, 2016·3 cites·19 claims
- 2562US9499946B2Method of sealing between adjacent components of a load-supporting surface with at least one closed-cell compressible rubber sealNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2015·Granted Nov 22, 2016·1 cites·8 claims
- 2660US12291826B2Overlapping modular mat system including mat components having fortifying membersNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2020·Granted May 6, 2025·0 cites·20 claims
- 2751US9677229B2Methods of manufacturing load-supporting mats for use with interfacing gap seal membersNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2016·Granted Jun 13, 2017·0 cites·2 claims
- 2850US2016017910A1Adjustable mat locking pin and methods of use thereofNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2015·Application pending·0 cites
- 2949US2018313107A1Methods of supporting upright items from a support surfaceNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2018·Application pending·0 cites
- 3049US2017226704A1Methods of manufacturing load-supporting mats for use with actively connected gap sealsNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2017·Application pending·0 cites
- 3143US9745815B2Apparatus and methods for sealing around the opening to a cellar formed around a hydrocarbon exploration or production wellNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2014·Granted Aug 29, 2017·0 cites·31 claims
- 3241US2017299109A1Apparatus, system and methods for providing accessories on a support surfaceNEWPARK MATS & INTEGRATED SERVICES LLC·Filed 2017·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when James Kerwin Mcdowell 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 →