Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Inventors Cities States

Home › Core holder and dispenser

Core holder and dispenser

US Patent 4441642 · Granted Apr 10, 1984

Assignee

No assignee recorded.

Inventors

Unknown

View full patent text on Google Patents →

More Patents by These Inventors

Sanitary, disposable baby change kit1987

List finder1981

Form pan structure1981

Data from USPTO via PatentsView — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly