Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Inventors Cities States

Home › Roof ladder

Roof ladder

US Patent D424211 · Granted May 2, 2000

Assignee

No assignee recorded.

Inventors

James D. Smith (9 patents)

View full patent text on Google Patents →

More Patents by These Inventors

System and method for outboard motor stabilization2012

Multiple-seal underwater pipe-riser connector1996

Tendon foundation guide cone assembly and anode1996

Putter head1995

Cargo vehicle1992

Method and apparatus for washing drilling cuttings1984

Data from USPTO via PatentsView — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly