Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Refractory

Refractory

US Patent 4557884 · Granted Dec 10, 1985

Estimated economic value: $1,164,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Ultra high strength proppant and method of preparing the same2021
Chromia-alumina refractory2010
Wall structure for carbon baking furnace2006
Method for producing ceramic matrix composites2004
Ceramic matrix composites2002
Method for changing the dielectric properties of a ceramic matrix composite2001
High temperature electromagnetic radiation absorbent material and method for man1999
Ceramic honeycomb and method1998
Method for making ceramic matrix composites1998
High density fused silica mixes, refractory shapes made therefrom, and method of1994
Silicon nitride/boron nitride composite with enhanced fracture toughness1994
Aluminum resistant refractory and method1993