Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11279800 | Aramid copolymer yarn having low residual sulfur | Christopher William Newton, Joseph Lenning Lowery, Steven R. Allen, Vlodek Gabara | 2022-03-22 |
| 10400357 | Sulfur and alkali metal containing imidazole fiber having ionically bound halides | Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Christopher William Newton, Andrew J. Sitter | 2019-09-03 |
| 10400082 | Sulfur-containing imidazole fiber having ionically bonded halides | Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Steven Raymond Lustig, Christopher William Newton +1 more | 2019-09-03 |
| 10240282 | Process for preparing aramid copolymer yarn using a halide acid wash | Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Christopher William Newton, Andrew J. Sitter | 2019-03-26 |
| 9994974 | Sulfur and alkali metal containing imidazole fiber having ionically bound halides | Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Christopher William Newton, Andrew J. Sitter | 2018-06-12 |
| 9988514 | Sulfur-containing imidazole fiber having ionically bonded halides | Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Steven Raymond Lustig, Christopher William Newton +1 more | 2018-06-05 |
| 9845553 | Process for preparing aramid copolymer yarn using an acid wash | Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Christopher William Newton, Andrew J. Sitter | 2017-12-19 |
| 9732442 | Process for preparing aramid copolymer yarn having low residual sulfur | Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Steven Raymond Lustig, Christopher William Newton +1 more | 2017-08-15 |
| 9469922 | Method for removing sulfur from fiber using a weak base | Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Steven Raymond Lustig, Christopher William Newton +1 more | 2016-10-18 |
| 9464370 | Method for removing sulfur from fiber using an aqueous acid | Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Steven Raymond Lustig, Christopher William Newton +1 more | 2016-10-11 |
| 9464380 | Method for removing sulfur from fiber using halide acid ion exchange | Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Steven Raymond Lustig, Christopher William Newton +1 more | 2016-10-11 |
| 9315923 | Process for preparing yarn derived from aramid copolymer fiber having low residual sulfur | Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Steven Raymond Lustig, Christopher William Newton +1 more | 2016-04-19 |
| 9284665 | Method for removing sulfur from fiber using halide salt ion exchange | Christopher William Newton, Joseph Lenning Lowery, Steven R. Allen, Vlodek Gabara | 2016-03-15 |
| 9080261 | Method for removing sulfur from fiber using monovalent salt ion exchange | Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Christopher William Newton | 2015-07-14 |
| 8664348 | 2,4,5-triaminophenols and related compounds | Rajiv Dhawan, Joachim C. Ritter, Frederick K Mallon, Steven R. Allen, Roger K Siemionko | 2014-03-04 |
| 8263221 | High inherent viscosity polymers and fibers therefrom | Doetze Jakob Sikkema, Qinghong Fu Adkins, Steven R. Allen, Christopher William Newton | 2012-09-11 |
| 7906615 | Process for hydrolyzing polyphosphoric acid in a spun yarn | Steven R. Allen, Steven Moore, Christopher William Newton, Doetze Jakob Sikkema | 2011-03-15 |
| 7851584 | Process for preparing monomer complexes | Doetze Jakob Sikkema, Hasan Dindi, James Schultz, Georg Martin, Ralf Demuth +1 more | 2010-12-14 |
| 7776246 | Process for the production of polyarenazole yarn | Steven R. Allen, Steven Moore, Christopher William Newton, Doetze Jakob Sikkema | 2010-08-17 |
| 7754846 | Thermal processes for increasing polyareneazole inherent viscosities | Qinghong Fu Adkins, Doetze Jakob Sikkema, Steven R. Allen | 2010-07-13 |
| 7683122 | Processes for increasing polymer inherent viscosity | Doetze Jakob Sikkema, Qinghong Fu Adkins, Steven R. Allen, Georg Martin, Ralf Demuth +1 more | 2010-03-23 |
| 7683157 | Process for the production of polyarenazole polymer | Steven R. Allen, Stephen Moore, Christopher William Newton, Catherine Fu Adkins, Doetze Jakob Sikkema | 2010-03-23 |
| 7671171 | Processes for preparing high inherent viscosity polyareneazoles using metal powders | Doetze Jakob Sikkema, Qinghong Fu Adkins, Steven R. Allen | 2010-03-02 |
| 5667743 | Wet spinning process for aramid polymer containing salts | Tsung-Ming Tai, James C. Masson, Richard L. Leonard | 1997-09-16 |
| 5340519 | Preparation of poly(m-phenylene isophthalamide) filaments | Richard A. Pease | 1994-08-23 |