Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Sealoff device and method for controlling the level of a fluid within first and second communicating confined regions

Sealoff device and method for controlling the level of a fluid within first and second communicating confined regions

US Patent 4703936 · Granted Nov 3, 1987

Estimated economic value: $4,842,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method of displaying and transacting electronic trading cards2019
Sensor, method and system of monitoring transmission lines2012
Device for improved illumination efficiency2010
Compact illumination device2010
Cross bin illumination system2009
High-gain solid-state laser2009
Light scatter measurement apparatus and method2008
Optical element for efficient sensing at large angles of incidence2006
Apparatus and system for monitoring temperature of high voltage conductors2004
Tendon threader for endosteal ligament mounting1993
Loose parts filter1987
Method and apparatus for measuring visibility from the polarization properties o1982