Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for the manufacture of activated carbon from coal by mild gasification and hydrogenation

Process for the manufacture of activated carbon from coal by mild gasification and hydrogenation

US Patent 5187141 · Granted Feb 16, 1993

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Investment casting with improved as-cast surface finish2003
Fluidized-bed roasting of molybdenite concentrates2001
Investment casting with improved as-cast surface finish1999
Oxidation resistant superalloy castings1994
Process for production of value-added coproducts from coal and other carbonaceou1993
Heat shield and deflector for engine cooling fan motor1993
Use of smelter-grade sulfuric acid as true heavy-liquid media in coal cleaning1988
Durable zinc ferrite sorbent pellets for hot coal gas desulfurization1988
Recovery of precious metals from refractory low-grade ores1988
Mixed lixiviant for separate recovery of zinc and lead from iron-containing wast1986
Two-stage leaching process for steel plant dusts1986
Zinc recovery from steel plant dusts and other zinciferous materials1986