{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Coated catalysts and their preparation", "item": "https://www.patentleaderboard.com/patent/4255285"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Coated catalysts and their preparation

US Patent 4255285 · Granted Mar 10, 1981

Assignee

Inventors

View full patent text on Google Patents →