Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Moineau pump with rotating closed end outer member and nonrotating hollow inner member

Moineau pump with rotating closed end outer member and nonrotating hollow inner member

US Patent 4923376 · Granted May 8, 1990

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

System for handling flexible materials2022
Method of assembling a temperature controlled railway car2009
Ventilated insulated roofing system1980