Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Lampshade frame with segmented ribs to achieve both an erect and collapsed state

Lampshade frame with segmented ribs to achieve both an erect and collapsed state

US Patent 6527421 · Granted Mar 4, 2003

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Gated class H amplifier/line driver system and method2012