Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Filter assembly

Filter assembly

US Patent 4269615 · Granted May 26, 1981

Estimated economic value: $4,914,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Fume hood with air chamber2003
Drafting board with replaceable surface layer1988
Fume hood incorporating high efficiency auxiliary air plenum1984
Fume hood incorporating high efficiency auxiliary air plenum1984
Fume hood with damper controlled baffles and method1984
Fume hood with damper controlled baffles and method1984
Fume hood with dual room air inlet systems1983
Method of controlling room air flow into a fume hood1983
Fume hood with sash lock1983
Inflatable-deflatable pad and air control system therefor1980