Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Self-cleaning system for monitoring the opacity of combustion engine exhaust using venturi effect

Self-cleaning system for monitoring the opacity of combustion engine exhaust using venturi effect

US Patent 5424842 · Granted Jun 13, 1995

Estimated economic value: $5,426,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

System and method for controlling movement of a marine vessel2010
Method for positioning a marine vessel2007
Forward and back scattering loss compensated smoke detector1994
Optical spectral analyzer1989