Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method of producing crystalline ammonium metatungstate

Method of producing crystalline ammonium metatungstate

US Patent 4626424 · Granted Dec 2, 1986

Estimated economic value: $6,708,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method of making pure cobalt metal powder substantially free of divalent cationi1992
Electrolytic method for producing ammonium paratungstate from cemented tungsten 1991
Method for removing organic and tungsten from sodium sulfate solution1991
Method for removing magnesium and calcium from sodium sulfate solutions1990
Method for removing magnesium and calcium from sodium sulfate solutions1990
Method for producing tungsten hexachloride1989
Process for extracting tungsten from alkali metal tungstate solutions1988
Process for extracting tungsten from alkali metal tungstate solutions1988
Process for recovering scandium from waste material1988
Process for recovering scandium from waste material1988
Purification of molybdenum1987
Method of producing crystalline ammonium metatungstate1986