Inventor

ALLEN STEVEN R

US33 patents

⚠️ This page may combine multiple inventors who share the name “ALLEN STEVEN R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ALLEN STEVEN R

ALLEN STEVEN R

Combined slide hammer nail puller and building wrecking tool

Sulfur and alkali metal containing imidazole fiber having ionically bound halides

Sulfur-containing imidazole fiber having ionically bonded halides

Slide hammer nail puller

Method for removing sulfur from fiber using monovalent salt ion exchange

Method for removing sulfur from fiber using an aqueous acid

Process for preparing aramid copolymer yarn using a halide acid wash

Production of and drying of copolymer fibers

Process for preparing aramid copolymer yarn using an acid wash

Process for preparing aramid copolymer yarn having low residual sulfur

Method for removing sulfur from fiber using a weak base

Method for removing sulfur from fiber using halide acid ion exchange

Process for preparing yarn derived from aramid copolymer fiber having low residual sulfur

Production of and drying of copolymer fibers

Production of and drying of copolymer fibers

DU PONT

Process for preparing subdenier fibers, pulp-like short fibers, fibrids, rovings and mats from isotropic polymer solutions

Process for the production of polyarenazole polymer

Process for preparing fiber, rovings and mats from lyotropic liquid crystalline polymers

Aramid yarn process

Sulfur-containing imidazole fiber having ionically bonded halides

Sulfur and alkali metal containing imidazole fiber having ionically bound halides

Process for removing phosphorous from a fiber or yarn

Process for the production of polyarenazole yarn

Process for making high elongation PPD-T fibers

Hot surface hydrolysis of polyphosphoric acid in spun yarns

Processes for preparing high inherent viscosity polyareneazoles using metal powders

Processes for increasing polymer inherent viscosity

Thermal processes for increasing polyareneazole inherent viscosities

NEWTON CHRISTOPHER WILLIAM

Aramid copolymer yarn having low residual sulfur

Method for removing sulfur from fiber using halide salt ion exchange

MAGELLAN SYSTEMS INT LLC

Process for hydrolyzing polyphosphoric acid in a spun yarn

DHAWAN RAJIV

2,4,5-triaminophenols and related compounds

SIKKEMA DOETZE JAKOB

High inherent viscosity polymers and fibers therefrom