Inventor · disambiguated record
Steven R. Allen
Also filed as: ALLEN STEVEN · ALLEN STEVEN R
33 granted patents·1 pending application·209 citations·filing 1979–2018
96Inventor score
Top patents by PatentIndex Score
34 records- 0195US10400082B2Sulfur-containing imidazole fiber having ionically bonded halidesDU PONT·Filed 2018·Granted Sep 3, 2019·4 cites·17 claims
- 0294US10400357B2Sulfur and alkali metal containing imidazole fiber having ionically bound halidesDU PONT·Filed 2018·Granted Sep 3, 2019·4 cites·21 claims
- 0393US7683157B2Process for the production of polyarenazole polymerDU PONT·Filed 2006·Granted Mar 23, 2010·20 cites·19 claims
- 0492US9994974B2Sulfur and alkali metal containing imidazole fiber having ionically bound halidesALLEN STEVEN R·Filed 2012·Granted Jun 12, 2018·6 cites·20 claims
- 0592US9988514B2Sulfur-containing imidazole fiber having ionically bonded halidesALLEN STEVEN R·Filed 2012·Granted Jun 5, 2018·6 cites·17 claims
- 0690US5296286AProcess for preparing subdenier fibers, pulp-like short fibers, fibrids, rovings and mats from isotropic polymer solutionsDU PONT·Filed 1991·Granted Mar 22, 1994·58 cites·22 claims
- 0789USD272712SCombined slide hammer nail puller and building wrecking toolALLEN STEVEN R·Filed 1981·Granted Feb 21, 1984·27 cites·1 claims
- 0887US11279800B2Aramid copolymer yarn having low residual sulfurNEWTON CHRISTOPHER WILLIAM·Filed 2012·Granted Mar 22, 2022·4 cites·10 claims
- 0987US4963298AProcess for preparing fiber, rovings and mats from lyotropic liquid crystalline polymersDU PONT·Filed 1989·Granted Oct 16, 1990·35 cites·11 claims
- 1082US9464370B2Method for removing sulfur from fiber using an aqueous acidALLEN STEVEN R·Filed 2012·Granted Oct 11, 2016·2 cites·14 claims
- 1181US7776246B2Process for the production of polyarenazole yarnDU PONT·Filed 2006·Granted Aug 17, 2010·4 cites·18 claims
- 1277US4985193AAramid yarn processDU PONT·Filed 1989·Granted Jan 15, 1991·21 cites·7 claims
- 1376US7968030B2Hot surface hydrolysis of polyphosphoric acid in spun yarnsDU PONT·Filed 2006·Granted Jun 28, 2011·2 cites·20 claims
- 1475US7906615B2Process for hydrolyzing polyphosphoric acid in a spun yarnMAGELLAN SYSTEMS INT LLC·Filed 2006·Granted Mar 15, 2011·2 cites·18 claims
- 1569US9080261B2Method for removing sulfur from fiber using monovalent salt ion exchangeALLEN STEVEN R·Filed 2012·Granted Jul 14, 2015·2 cites·12 claims
- 1663USD262513SSlide hammer nail pullerALLEN STEVEN R·Filed 1979·Granted Jan 5, 1982·7 cites·1 claims
- 1761US7888457B2Process for removing phosphorous from a fiber or yarnDU PONT·Filed 2006·Granted Feb 15, 2011·2 cites·19 claims
- 1860US10240282B2Process for preparing aramid copolymer yarn using a halide acid washALLEN STEVEN R·Filed 2012·Granted Mar 26, 2019·0 cites·16 claims
- 1960US9464380B2Method for removing sulfur from fiber using halide acid ion exchangeALLEN STEVEN R·Filed 2012·Granted Oct 11, 2016·0 cites·15 claims
- 2057US9469922B2Method for removing sulfur from fiber using a weak baseALLEN STEVEN R·Filed 2012·Granted Oct 18, 2016·0 cites·20 claims
- 2156US9315923B2Process for preparing yarn derived from aramid copolymer fiber having low residual sulfurALLEN STEVEN R·Filed 2012·Granted Apr 19, 2016·0 cites·32 claims
- 2256US9284665B2Method for removing sulfur from fiber using halide salt ion exchangeNEWTON CHRISTOPHER WILLIAM·Filed 2012·Granted Mar 15, 2016·0 cites·14 claims
- 2356US8932501B2Production of and drying of copolymer fibersALLEN STEVEN R·Filed 2012·Granted Jan 13, 2015·0 cites·15 claims
- 2454US7671171B2Processes for preparing high inherent viscosity polyareneazoles using metal powdersDU PONT·Filed 2006·Granted Mar 2, 2010·0 cites·19 claims
- 2553US9903051B2Production of and drying of copolymer fibersALLEN STEVEN R·Filed 2012·Granted Feb 27, 2018·0 cites·20 claims
- 2653US9845553B2Process for preparing aramid copolymer yarn using an acid washALLEN STEVEN R·Filed 2012·Granted Dec 19, 2017·0 cites·16 claims
- 2753US9732442B2Process for preparing aramid copolymer yarn having low residual sulfurALLEN STEVEN R·Filed 2012·Granted Aug 15, 2017·0 cites·16 claims
- 2853US8671524B2Production of and drying of copolymer fibersALLEN STEVEN R·Filed 2012·Granted Mar 18, 2014·0 cites·19 claims
- 2953US8664348B22,4,5-triaminophenols and related compoundsDHAWAN RAJIV·Filed 2010·Granted Mar 4, 2014·0 cites·16 claims
- 3051US8263221B2High inherent viscosity polymers and fibers therefromSIKKEMA DOETZE JAKOB·Filed 2006·Granted Sep 11, 2012·0 cites·16 claims
- 3149US7683122B2Processes for increasing polymer inherent viscosityDU PONT·Filed 2006·Granted Mar 23, 2010·0 cites·20 claims
- 3248US7754846B2Thermal processes for increasing polyareneazole inherent viscositiesDU PONT·Filed 2006·Granted Jul 13, 2010·0 cites·20 claims
- 3342US2015038840A1Portable medical imager with gui interface comprising a motion sensorKONINKL PHILIPS NV·Filed 2013·Application pending·0 cites
- 3434US5330698AProcess for making high elongation PPD-T fibersDU PONT·Filed 1993·Granted Jul 19, 1994·3 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →