Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Inventors Cities States

Home › Shaft seal

Shaft seal

US Patent 11274675 · Granted Mar 15, 2022

Assignee

Plasticair

Inventors

Paul Sixsmith (4 patents)

View full patent text on Google Patents →

More Patents by These Inventors

Windband silencer with means to reduce cross-wind pressure differential2024

Windband silencer with means to reduce cross-wind pressure differential2022

Exhaust gas nozzle for fan2004

Data from USPTO via PatentsView — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly