Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Piston oil ring having land flanked by concave sidewalls

Piston oil ring having land flanked by concave sidewalls

US Patent 6655697 · Granted Dec 2, 2003

Estimated economic value: $9,514,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Junction body, fittings, hydraulic system for the passage of a fluid between two2022
Joining device for conduits and associated joining process2017
Crimp-on pipe connection accessory2016
Trigger sprayer2001
Nozzle2000
Cushion grip handle1999
Jug and dispensing valve1992
Modular storage rack1990
Portable pressure sprayer1986
Portable pressure sprayer1985