Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Inventors Cities States

Home › Metal microfilter

Metal microfilter

US Patent 4812236 · Granted Mar 14, 1989

Assignee

Sulzer Brothers Limited

Inventors

Christian Ehrsam (6 patents)

View full patent text on Google Patents →

More Patents by These Inventors

Apparatus and process for storing hydrate-forming gaseous hydrocarbons1990

Microfilter foil and method of producing same1989

Method of fluid component separation by crystallization, and crystallization sep1988

Method and apparatus for freeze drying1988

Method and apparatus for generating an ice crystal suspension1988

Data from USPTO via PatentsView — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly