Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › High density low porosity refractory product and process for making the same

High density low porosity refractory product and process for making the same

US Patent 4231978 · Granted Nov 4, 1980

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Shaft kiln1982