Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Spool for a spool valve and method of producing same

Spool for a spool valve and method of producing same

US Patent 4862920 · Granted Sep 5, 1989

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Two-stage hydraulic valves1995
Digital pulse-width-modulation generator for current control1992
Hydraulic latch device1989
Pilot valves for two-stage hydraulic devices1988
Pilot valves for two-stage hydraulic devices1988