Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Inventors Cities States

Home › Ruler

Ruler

US Patent D334146 · Granted Mar 23, 1993

Assignee

No assignee recorded.

Inventors

James E. Boelling (11 patents)

View full patent text on Google Patents →

More Patents by These Inventors

Positioning tool2000

Ladder safety tip strap1999

Workpiece positioning tool and method using same1999

Golf tee tool1998

Golf ball tee setting device and method of using same1998

Ladder inclinometer1997

ladder inclinometer1997

Corner brace1995

Adjustable base for tools1995

Data from USPTO via PatentsView — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly