Inventor
Kwok-Shun Cheng
Inventor
Nashua, NH, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation17%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry9%
Y10TTechnical subjects covered by former us classification9%
C07KPeptides7%
D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons7%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons7%
C02FTreatment of water, waste water, sewage, or sludge5%
B29CShaping or joining of plastics3%
B29LIndexing scheme associated with subclass b29c, relating to particular articles3%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact3%
PatentTitleYear
11,097,992Apparatus for extraction of at least one element from a cavity and a pressure limitation apparatus202110,786,754Depth filters for disposable biotechnological processes20209,067,976'Asymmetric porous adsorptive bead'20158,652,330'Asymmetric porous adsorptive bead'20148,177,537'Method and apparatus for making porous agarose beads'20128,091,618'Exchange apparatus'20127,717,405'Hollow fiber membrane contact apparatus and process'20107,678,269'Asymmetric porous adsorptive bead'20107,678,302'Method and apparatus for making porous agarose beads'20107,347,937'Perfluorinated thermoplastic filter cartridge'20087,308,932'Exchange apparatus'20076,977,043'Skinned hollow fiber membrane and method of manufacture'20056,921,482'Skinned hollow fiber membrane and method of manufacture'20056,805,731'Hollow fiber membrane contactor'20046,802,972'Microporous hollow fiber membranes from perfluorinated thermoplastic polymers'20046,802,973'Microporous hollow fiber membranes from perfluorinated thermoplastic polymers'20046,663,745'Method for manufacturing hollow fiber membranes'20036,582,496'Hollow fiber membrane contactor'2003Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2003–2005Patents assigned to MYKROLIS CORP (7)· patent assignee history
2003–2020Based in Nashua, NH, US· patent location history
2007–2012Patents assigned to ENTEGRIS INC (4)· patent assignee history
2012–2020Patents assigned to EMD MILLIPORE CORP (4)· patent assignee history
2012–2014Patents assigned to CHENG KWOK-SHUN (3)· patent assignee history
2012–2014Patents assigned to BIAN NANYING (2)· patent assignee history
2021Based in Singapore, SG· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MYKROLIS CORP | 7 | 2003–2005 |
| EMD MILLIPORE CORP | 4 | 2012–2020 |
| ENTEGRIS INC | 4 | 2007–2012 |
| CHENG KWOK-SHUNself | 3 | 2012–2014 |
| BIAN NANYING | 2 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Nashua, NH, US | 17 | 2003–2020 |
| Singapore, SG | 1 | 2021 |