Cheng; Kwok-Shun
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cheng; Kwok-Shun.The latest application filed is for "method of forming a laminated single layer composite membrane".
Company Profile
6.20.22
- Cheng; Kwok-Shun - Nashua NH
Patent Activity
| Patent | Date |
|---|---|
| High capacity composite depth filter media with low extractables Grant 11,439,933 - Woo , et al. September 13, 2 | 2022-09-13 |
| Polyamide coated filter membrane, filters, and methods Grant 11,413,586 - Jaber , et al. August 16, 2 | 2022-08-16 |
| Method Of Forming A Laminated Single Layer Composite Membrane App 20210354092 - WU; Dongzhu ; et al. | 2021-11-18 |
| Depth Filters For Disposable Biotechnological Processes App 20200398187 - Singh; Nripen ; et al. | 2020-12-24 |
| Depth filters for disposable biotechnological processes Grant 10,786,754 - Singh , et al. September 29, 2 | 2020-09-29 |
| Porous Polymeric Hollow Filter Membrane App 20200222859 - PATEL; Rajni ; et al. | 2020-07-16 |
| Porous Polyethylene Filter Membrane With Asymmetric Pore Structure, And Related Filters And Methods App 20200139309 - CHENG; Kwok-Shun ; et al. | 2020-05-07 |
| High Capacity Composite Depth Filter Media With Low Extractables App 20200129901 - Woo; Maybelle ; et al. | 2020-04-30 |
| Polyamide Coated Filter Membrane, Filters, And Methods App 20190329185 - JABER; Jad Ali ; et al. | 2019-10-31 |
| Highly Retentive Polyamide Hollow Fiber Membranes Produced Via Controlled Shrinkage App 20190255489 - WOO; Maybelle ; et al. | 2019-08-22 |
| Depth Filters For Disposable Biotechnological Processes App 20180345173 - Singh; Nripen ; et al. | 2018-12-06 |
| Asymmetric porous adsorptive bead Grant 9,067,976 - Cheng , et al. June 30, 2 | 2015-06-30 |
| Low Organic Extractable Depth Filter Media Processed with Solvent Extraction Method App 20150133643 - Cheng; Kwok-Shun ; et al. | 2015-05-14 |
| Asymmetric Porous Adsorptive Bead App 20140073769 - Cheng; Kwok-Shun ; et al. | 2014-03-13 |
| Asymmetric porous adsorptive bead Grant 8,652,330 - Cheng , et al. February 18, 2 | 2014-02-18 |
| Depth Filters For Disposable Biotechnological Processes App 20130012689 - Singh; Nripen ; et al. | 2013-01-10 |
| Method and apparatus for making porous agarose beads Grant 8,177,537 - Cheng , et al. May 15, 2 | 2012-05-15 |
| Exchange apparatus Grant 8,091,618 - Doh , et al. January 10, 2 | 2012-01-10 |
| Flow Through Purification Processes For Large Biomolecules App 20110142863 - Iyer; Ganapathysubramanian ; et al. | 2011-06-16 |
| Method and apparatus for making porous agarose beads App 20100227015 - Cheng; Kwok-Shun ; et al. | 2010-09-09 |
| Asymmertric porous adsorptive bead App 20100174051 - Cheng; Kwok-Shun ; et al. | 2010-07-08 |
| Hollow fiber membrane contact apparatus and process Grant 7,717,405 - Parekh , et al. May 18, 2 | 2010-05-18 |
| Method and apparatus for making porous agarose beads Grant 7,678,302 - Cheng , et al. March 16, 2 | 2010-03-16 |
| Asymmetric porous adsorptive bead Grant 7,678,269 - Cheng , et al. March 16, 2 | 2010-03-16 |
| Hollow Fiber Membrane Contact Apparatus And Process App 20080156191 - PAREKH; BIPIN S. ; et al. | 2008-07-03 |
| Exchange apparatus App 20080135219 - Doh; Cha P. ; et al. | 2008-06-12 |
| Perfluorinated thermoplastic filter cartridge Grant 7,347,937 - Cheng , et al. March 25, 2 | 2008-03-25 |
| Exchange apparatus Grant 7,308,932 - Doh , et al. December 18, 2 | 2007-12-18 |
| Asymmetric porous adsorptive bead App 20070212540 - Cheng; Kwok-Shun ; et al. | 2007-09-13 |
| Method and apparatus for making porous agarose beads App 20070069408 - Cheng; Kwok-Shun ; et al. | 2007-03-29 |
| Skinned hollow fiber membrane and method of manufacture Grant 6,977,043 - Cheng , et al. December 20, 2 | 2005-12-20 |
| Skinned hollow fiber membrane and method of manufacture Grant 6,921,482 - Cheng , et al. July 26, 2 | 2005-07-26 |
| Exchange apparatus App 20040251010 - Doh, Cha P ; et al. | 2004-12-16 |
| Hollow fiber membrane contactor Grant 6,805,731 - Cheng , et al. October 19, 2 | 2004-10-19 |
| Microporous hollow fiber membranes from perfluorinated thermoplastic polymers Grant 6,802,972 - Cheng , et al. October 12, 2 | 2004-10-12 |
| Microporous hollow fiber membranes from perfluorinated thermoplastic polymers Grant 6,802,973 - Cheng , et al. October 12, 2 | 2004-10-12 |
| Skinned hollow fiber membrane and method of manufacture App 20040154986 - Cheng, Kwok-Shun ; et al. | 2004-08-12 |
| Method for manufacturing hollow fiber membranes App 20040094466 - Cheng, Kwok-Shun ; et al. | 2004-05-20 |
| Method for manufacturing hollow fiber membranes Grant 6,663,745 - Cheng , et al. December 16, 2 | 2003-12-16 |
| Microporous hollow fiber membranes from perfluorinated thermoplastic polymers App 20030201223 - Cheng, Kwok-Shun ; et al. | 2003-10-30 |
| Hollow fiber membrane contactor Grant 6,582,496 - Cheng , et al. June 24, 2 | 2003-06-24 |
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