Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Seismic initiator for earthquake shutoff valves and the like

Seismic initiator for earthquake shutoff valves and the like

US Patent 5307699 · Granted May 3, 1994

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Ball seat leveler2010
Earthquake actuated horizontal valve with micro switch2006
Earthquake actuated micro switch2005
Earthquake actuated automatic gas shutoff valve2003
Enhanced overflow call processing2001
Earthquake actuated automatic gas shutoff valve2001
Automatic safety shutoff valve2000
Automatic safety shutoff valve2000
Telecommunications system for transferring a telephone call1997
Automatic safety shutoff valve1993
Automatic safety shutoff valve1993
Intergrating, indicating, and controlling seismometer1992