Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Inventors Cities States

Home › Door closer

Door closer

US Patent 5414894 · Granted May 16, 1995

Assignee

Corbin Russwin

Inventors

Zakhary Fayngersh (9 patents)

View full patent text on Google Patents →

More Patents by These Inventors

Door latch operator mount2003

Mortise lock with automatic deadbolt2003

Mortise lock2002

Reversible mortise lock2002

Door closer1995

Door closer1994

Fluid door closer with means to permit entrapped gases to move1993

Adjustable closer arm1990

Data from USPTO via PatentsView — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly