Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Inventors Cities States

Home › Inhalation mask

Inhalation mask

US Patent D302746 · Granted Aug 8, 1989

Assignee

No assignee recorded.

Inventors

Terry L. Shirley (10 patents)

View full patent text on Google Patents →

More Patents by These Inventors

Lightweight armor and methods of making2014

Stance-correcting knee brace2000

Laterally adjustable knee brace1999

External ligament system1997

I.V. pole clamp1996

Disposable resuscitation device having unidirectional valve1996

Oxygen cylinder bracket1995

Disposable resuscitator having a unidirectional valve1994

Adjustable plant container hanger1991

Data from USPTO via PatentsView — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly