Inventor · disambiguated record
Douglas S. Welch
Also filed as: WELCH DOUGLAS S
18 granted patents·5 pending applications·90 citations·filing 2011–2023
93Inventor score
Top patents by PatentIndex Score
23 records- 0197US11002395B2Push to connect conduit fitting with ferruleSWAGELOK CO·Filed 2020·Granted May 11, 2021·8 cites·20 claims
- 0295US10458582B2Single action push to connect conduit fitting with colletingSWAGELOK CO·Filed 2016·Granted Oct 29, 2019·13 cites·20 claims
- 0394US10704722B2Single action push to connect conduit fittingSWAGELOK CO·Filed 2019·Granted Jul 7, 2020·9 cites·19 claims
- 0494US10619780B2Single action push to connect conduit fittingSWAGELOK CO·Filed 2018·Granted Apr 14, 2020·8 cites·20 claims
- 0594US10584820B2Push to connect conduit fitting with ferruleSWAGELOK CO·Filed 2018·Granted Mar 10, 2020·10 cites·13 claims
- 0694US10024468B2Conduit fitting with components adapted for facilitating assemblySWAGELOK CO·Filed 2015·Granted Jul 17, 2018·11 cites·30 claims
- 0793US9903518B2Single action push to connect conduit fittingSWAGELOK CO·Filed 2014·Granted Feb 27, 2018·13 cites·42 claims
- 0890US9958100B2Push to connect conduit fitting with ferruleWILLIAMS PETER C·Filed 2011·Granted May 1, 2018·12 cites·25 claims
- 0979US12435820B2Push to connect conduit fitting assemblies and arrangementsSWAGELOK CO·Filed 2023·Granted Oct 7, 2025·0 cites·20 claims
- 1079US11781688B2Push to connect conduit fitting assemblies and arrangementsSWAGELOK CO·Filed 2020·Granted Oct 10, 2023·1 cites·20 claims
- 1179US11009158B2Conduit fitting with stroke resisting featuresSWAGELOK CO·Filed 2020·Granted May 18, 2021·1 cites·20 claims
- 1278US10584814B2Conduit fitting with stroke resisting featuresSWAGELOK CO·Filed 2017·Granted Mar 10, 2020·2 cites·23 claims
- 1377US11079046B2Conduit fitting with components adapted for facilitating assemblySWAGELOK CO·Filed 2019·Granted Aug 3, 2021·1 cites·24 claims
- 1473US10648595B2Component retaining structure for conduit fittingSWAGELOK CO·Filed 2018·Granted May 12, 2020·1 cites·16 claims
- 1571US12072044B2Conduit fitting with components adapted for facilitating assemblySWAGELOK CO·Filed 2021·Granted Aug 27, 2024·0 cites·20 claims
- 1664US11073234B2Single action push to connect conduit fittingSWAGELOK CO·Filed 2020·Granted Jul 27, 2021·0 cites·19 claims
- 1761US2018320804A1Conduit fitting with components adapted for facilitating assemblySWAGELOK CO·Filed 2018·Application pending·0 cites
- 1854US2017227151A1Component retaining structure for conduit fittingSWAGELOK CO·Filed 2017·Application pending·0 cites
- 1944US2019040980A1Component retaining structure for conduit fittingSWAGELOK CO·Filed 2018·Application pending·0 cites
- 2043US11703165B2Ferrule assembly for conduit fittingSWAGELOK CO·Filed 2019·Granted Jul 18, 2023·0 cites·20 claims
- 2143US10359134B2Component retaining structure for conduit fittingSWAGELOK CO·Filed 2016·Granted Jul 23, 2019·0 cites·21 claims
- 2242US2018299012A1Seal device for cylindrical componentSWAGELOK CO·Filed 2018·Application pending·0 cites
- 2338US2017261137A1Component retaining structure for conduit fittingSWAGELOK CO·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →