Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Inventors Cities States

Home › Electric slot furnace

Electric slot furnace

US Patent 4185160 · Granted Jan 22, 1980

Assignee

No assignee recorded.

Inventors

Donald Gray (2 patents)

View full patent text on Google Patents →

More Patents by These Inventors

Transceiver unit for a telecommunication system1984

Data from USPTO via PatentsView — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly