Norgren Limited
91Patents
80Active
91Granted
55Portfolio score
Filing activity: Jun 25, 1992 → Jul 9, 2021 · 39 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8091860B2 | Valve with sensor | Emerging Cross-Sectional Technologies | 48 | Active |
| US5372392A | Connecting devices | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US7204273B1 | Valve island with a pilot air path located on the side of a sub-base | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7261121B2 | Expandable gas or fluid distribution system | Emerging Cross-Sectional Technologies | 15 | Expired |
| US8245729B2 | Exhaust venting for a fluid control device | Emerging Cross-Sectional Technologies | 15 | Active |
| US8070132B2 | Fluid control device with a non-circular flow area | Emerging Cross-Sectional Technologies | 10 | Active |
| US8141585B2 | Rocker type diaphragm valve | Emerging Cross-Sectional Technologies | 9 | Active |
| US9679690B2 | Solenoid with an over-molded component | Emerging Cross-Sectional Technologies | 7 | Active |
| US8540211B2 | Automated valve testing apparatus | Emerging Cross-Sectional Technologies | 7 | Active |
| US5242151A | Fluid flow control valve | Emerging Cross-Sectional Technologies | 6 | Expired |
| US9915183B2 | Fluid control module for waste heat recovery systems | Emerging Cross-Sectional Technologies | 5 | Active |
| US7581485B2 | Working cylinder with terminal position damping | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US7467640B2 | Valve for an expandable gas or liquid distribution system | Emerging Cross-Sectional Technologies | 5 | Active |
| US8237430B2 | Displacement sensor for a rod | Emerging Cross-Sectional Technologies | 4 | Active |
| US7194911B2 | Pressure gage for an expandable gas or fluid distribution system | Physics | 4 | Expired |
| US8695636B2 | One piece double membrane diaphragm valve | Emerging Cross-Sectional Technologies | 4 | Active |
| US9022351B2 | Butterfly valve | Emerging Cross-Sectional Technologies | 3 | Active |
| US7653442B2 | Communication system comprising a controller system and a master control means connected via a multipole connection means | Electricity | 3 | Expired |
| US8863645B2 | Piston support portion for a piston assembly of a rodless cylinder | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US8511155B2 | Devices including a mechanochromatic material for indicating pressure | Emerging Cross-Sectional Technologies | 3 | Active |
| US8301307B2 | Pneumatic actuator system and method | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US7451778B2 | Valve for an expandable gas or fluid distribution system | Emerging Cross-Sectional Technologies | 3 | Active |
| US7228876B1 | Valve island with non-active area venting between components | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8969750B2 | Method and apparatus for controlling electrode arms of a welding device | Performing Operations; Transporting | 2 | Active |
| US9194508B2 | Modular valve assembly | Emerging Cross-Sectional Technologies | 2 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.