Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Inventors Cities States

Home › Filter material

Filter material

US Patent 5114894 · Granted May 19, 1992

Assignee

Grain Processing

Inventors

Paul R. Witt (8 patents)

View full patent text on Google Patents →

More Patents by These Inventors

NPN delivery system and method for preparing same1999

Filter material1995

Preparation of low alcohol beer1988

Production of high D.E. syrups1986

Modification of soy isolate1986

Liquefaction of starch1985

Starch liquefaction process1980

Data from USPTO via PatentsView — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly