Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method of manufacturing rigid frame building elements filled with hard foam plastic

Method of manufacturing rigid frame building elements filled with hard foam plastic

US Patent 4518550 · Granted May 21, 1985

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Procedure for ceramizing radioactive wastes1986