Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Inventors Cities States

Home › Power surge protection circuit

Power surge protection circuit

US Patent 4999728 · Granted Mar 12, 1991

Assignee

No assignee recorded.

Inventors

Unknown

View full patent text on Google Patents →

More Patents by These Inventors

Building service ground fault interrupter2011

Method and apparatus for producing clean, undistorted variable voltage 50-60 Hz 2009

Smoke detector with strobed visual alarm and remote alarm coupling1991

Electronic information dissemination system1987

Data from USPTO via PatentsView — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly