Inventor

CASTRIGNO STEVEN

US23 patents

⚠️ This page may combine multiple inventors who share the name “CASTRIGNO STEVEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WATTS WATER TECHNOLOGIES INC

12 patents

USD746950SJan 5, 2016

Pipe fitting

WATTS WATER TECHNOLOGIES INC10 citations83

USD746956SJan 5, 2016

Tee fitting

WATTS WATER TECHNOLOGIES INC7 citations83

USD746418SDec 29, 2015

Threaded end pipe fitting

WATTS WATER TECHNOLOGIES INC9 citations83

USD729909SMay 19, 2015

Elbow fitting

WATTS WATER TECHNOLOGIES INC16 citations83

USD699771SFeb 18, 2014

Control unit for pipe fusing

WATTS WATER TECHNOLOGIES INC14 citations80

USD746957SJan 5, 2016

Straight pipe fitting

WATTS WATER TECHNOLOGIES INC3 citations72

USD729907SMay 19, 2015

End cap pipe fitting

WATTS WATER TECHNOLOGIES INC3 citations62

USD725448SMar 31, 2015

Wand for fusing pipe

WATTS WATER TECHNOLOGIES INC1 citations51

USD725449SMar 31, 2015

Wand for fusing pipe

WATTS WATER TECHNOLOGIES INC1 citations51

USD720973SJan 13, 2015

Wand for fusing pipe

WATTS WATER TECHNOLOGIES INC1 citations51

USD720972SJan 13, 2015

Wand for fusing pipe

WATTS WATER TECHNOLOGIES INC0 citations51

US9296153B2Mar 29, 2016

Portable system for bonding pipes

WATTS WATER TECHNOLOGIES INC0 citations48

WATTS REGULATOR CO

7 patents

USD1079897SJun 17, 2025

Relief valve

WATTS REGULATOR CO0 citations62

US12188213B2Jan 7, 2025

Fluid detection systems and methods using the same

WATTS REGULATOR CO0 citations62

US11703140B2Jul 18, 2023

Relief valve with testing lockout

WATTS REGULATOR CO0 citations62

US12584298B2Mar 24, 2026

Backflow alert system

WATTS REGULATOR CO0 citations61

US11421795B2Aug 23, 2022

Relief valve

WATTS REGULATOR CO0 citations51

US12392919B2Aug 19, 2025

Fluid detection systems and methods using the same

WATTS REGULATOR CO0 citations49

US10005233B2Jun 26, 2018

Portable system for bonding pipes

WATTS REGULATOR CO0 citations48

MCCORD WINN TEXTRON INC

2 patents

US6098000AAug 1, 2000

Interactive, individually controlled, multiple bladder seating comfort adjustment system and method

MCCORD WINN TEXTRON INC151 citations95

US6088643AJul 11, 2000

Interactive, individually controlled, multiple bladder seating comfort adjustment system

MCCORD WINN TEXTRON INC135 citations95

DAVIDSON TEXTRON INC

1 patent

US5066037ANov 19, 1991

Instrument panel with airbag deployment door

DAVIDSON TEXTRON INC51 citations89

CASTRIGNO STEVEN

1 patent

US8419842B2Apr 16, 2013

Hydronic system air eliminator

CASTRIGNO STEVEN1 citations43