Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Cushion having flexible outer membrane and multi-density resilient foam member therein

Cushion having flexible outer membrane and multi-density resilient foam member therein

US Patent 4755411 · Granted Jul 5, 1988

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Watercraft flotation device using drawstring attachment2012
Solenoid actuated wire feed and tearing apparatus1980