Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Oil supply system for a valve operating mechanism in internal combustion engines

Oil supply system for a valve operating mechanism in internal combustion engines

US Patent 4729349 · Granted Mar 8, 1988

Estimated economic value: $187,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Dental plier2014
Dental plier2014
Dental plier2014
Compound sheet gasket2006
Method of fitting bracket for orthodontic appliance2001
Engine block structure in multi-cylinder engine2000
Engine for vehicle1999
Apparatus for continuously manufacturing corrugated sheet1996
Manufacturing titanium alloy component by beta forming1993
High strength non-heat refining free cutting steels1992
Wrapping type transmission structure for internal combustion engines1991
Steel for gears, having high strength, toughness and machinability1990