Inventor
WELCH DOUGLAS S
US18 patents
⚠️ This page may combine multiple inventors who share the name “WELCH DOUGLAS S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SWAGELOK CO
17 patentsUS10619780B2Apr 14, 2020
Single action push to connect conduit fitting
SWAGELOK CO8 citations84
US9903518B2Feb 27, 2018
Single action push to connect conduit fitting
SWAGELOK CO13 citations84
US10704722B2Jul 7, 2020
Single action push to connect conduit fitting
SWAGELOK CO9 citations83
US10458582B2Oct 29, 2019
Single action push to connect conduit fitting with colleting
SWAGELOK CO13 citations83
US11002395B2May 11, 2021
Push to connect conduit fitting with ferrule
SWAGELOK CO8 citations82
US10584820B2Mar 10, 2020
Push to connect conduit fitting with ferrule
SWAGELOK CO10 citations82
US10024468B2Jul 17, 2018
Conduit fitting with components adapted for facilitating assembly
SWAGELOK CO11 citations82
US10584814B2Mar 10, 2020
Conduit fitting with stroke resisting features
SWAGELOK CO2 citations73
US11073234B2Jul 27, 2021
Single action push to connect conduit fitting
SWAGELOK CO0 citations62
US11009158B2May 18, 2021
Conduit fitting with stroke resisting features
SWAGELOK CO1 citations62
US10648595B2May 12, 2020
Component retaining structure for conduit fitting
SWAGELOK CO1 citations62
US12435820B2Oct 7, 2025
Push to connect conduit fitting assemblies and arrangements
SWAGELOK CO0 citations61
US12072044B2Aug 27, 2024
Conduit fitting with components adapted for facilitating assembly
SWAGELOK CO0 citations61
US11781688B2Oct 10, 2023
Push to connect conduit fitting assemblies and arrangements
SWAGELOK CO1 citations61
US11079046B2Aug 3, 2021
Conduit fitting with components adapted for facilitating assembly
SWAGELOK CO1 citations61
US11703165B2Jul 18, 2023
Ferrule assembly for conduit fitting
SWAGELOK CO0 citations47
US10359134B2Jul 23, 2019
Component retaining structure for conduit fitting
SWAGELOK CO0 citations38