Skip to content

Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Universities Inventors Cities States Technologies Top Patents Inventor 500

Select ranking year

Home › Variable speed transmission

Variable speed transmission

US Patent 5167591 · Granted Dec 1, 1992

Assignee

No assignee recorded.

Inventors

Unknown

View full patent text on Google Patents →

More Patents by These Inventors

Aerodynamic automobile2001

Variable speed transmission1993

Variable speed transmission1992

Air/air heat exchanger using water as heat exchange medium1990

Liquid piston compression systems for compressing steam1986

Data from USPTO via PatentsView — About — Embed & Press Kit — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly