Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Inventors Cities States

Home › Magnetic separator and method

Magnetic separator and method

US Patent 4261815 · Granted Apr 14, 1981

Assignee

MIT

Inventors

David R. Kelland (5 patents)

View full patent text on Google Patents →

More Patents by These Inventors

Method for desulfurization of coal1987

Method and apparatus for continuous magnetic separation1987

Method of removing sulfur and other contaminants from the coal in coal-oil slurr1984

Magnetic separator having a multilayer matrix, method and apparatus1980

Data from USPTO via PatentsView — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly