Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Check valve

Check valve

US Patent 5913331 · Granted Jun 22, 1999

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Polymer-coated member having a reticulated foam substrate with an open-cell foam2025
Transportable gas detector unit having mounted gas sources for gas sensor testin2024
Processes for coating reticulated foams2024
Reactor system for separation and enrichment of minerals from a slurry containin2023
Backflow prevention and method of manufacture2023
Cervical-curvature autocorrect apparatus and methods incorporating the apparatus2023
Backflow prevention and method of manufacture2022
Reactor system for separation and enrichment of minerals from a slurry containin2022
Portable personal monitor device and associated methods2022
Backflow prevention and method of manufacture2021
Portable personal monitor device and associated methods2020
Backflow prevention and method of manufacture2015