Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for removing phosphorous from a fiber or yarn

Process for removing phosphorous from a fiber or yarn

US Patent 7888457 · Granted Feb 15, 2011

Estimated economic value: $11,918,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Polymers comprising sulfonated 2,6-diphenyl-1,4-phenylene oxide repeating units2022
Aramid copolymer yarn having low residual sulfur2022
Sulfur-containing imidazole fiber having ionically bonded halides2019
Sulfur and alkali metal containing imidazole fiber having ionically bound halide2019
Process for preparing aramid copolymer yarn using a halide acid wash2019
Sulfur and alkali metal containing imidazole fiber having ionically bound halide2018
Sulfur-containing imidazole fiber having ionically bonded halides2018
Production of and drying of copolymer fibers2018
Process for preparing aramid copolymer yarn using an acid wash2017
Process for preparing aramid copolymer yarn having low residual sulfur2017
Method for removing sulfur from fiber using a weak base2016
Method for removing sulfur from fiber using an aqueous acid2016