Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Inventors Cities States

Home › Bathtub

Bathtub

US Patent D334424 · Granted Mar 30, 1993

Assignee

Kohler

Inventors

David J. O'Connell (27 patents)

View full patent text on Google Patents →

More Patents by These Inventors

Plumbing fixture2006

Tub for bathing2002

Tub for bathing2002

Overflowing soaker bath tub2002

Fluid valve2001

Tub for bathing2001

Cooking sink2001

Fluid valve2001

Cooking sink with cutting board2001

Combined cooking sink and control unit2000

Sink2000

Data from USPTO via PatentsView — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly