Inventor

CHOI KYUNG-JU

US45 patents

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

CHOI KYUNG-JU

AAF MCQUAY INC

Spacer arrangement for pleated filter

Product and method of forming a gradient density fibrous filter

Method of forming spaced pleated filter material and product of same

Product and method of forming successive layers of face-to-face adjacent media with calculated pore size

Method, apparatus and product for manufacturing nanofiber media

Method of forming combined pleated scrim and filter media materials and product of same

Crest supported filter frame assembly and method

Thermobondable filter medium and border frame and method of making same

Filter with ePTFE and method of forming

Method of forming successive layers of face-to-face adjacent media with calculated pore size

Treated filter media and frame

Thermobondable filter medium and border frame and method of making same

Filter with ePTFE and method of forming

Fluid stream velocity distribution control

Apparatus for forming a layered fibrous mat of varied porosity

Series apparatus for forming layered fibrous mat of differing fibers and controlled surfaces

Series arrangement for forming layered fibrous mat of differing fibers and controlled surfaces

AAF INTERNATIONAL

High capacity filter media

Melt blowing method for forming layered webs of filter media

Filter arrangement having at least two successive layers having predetermined spacing and its method for making

Pocket filter and method and apparatus for making the same

Melt blowing apparatus for producing a layered filter media web product

Pleated filter arrangement

Melt blowing apparatus and method for forming a fibrous layered web of filter media including a fluid distribution arrangement

Pleating apparatus

Melt blown product formed as a fibrous layered web of filter media

AAF INTERNATIONAL INC

Apparatus for forming fibrous filter media

Pleated filter with spacer insert

Method of assembly of pleated filter with spacer insert

Pleated filter media with crest spacers and method of making

Pleated filter media with strip spacers and method of making

Filter media with fluid stream positioned fibers

Method for forming fibrous filter media, filter units and product

Air circulating fan

AAF INTERNAT

Pleated fluid filter medium frame

Pleated fluid filter medium blend

Method and apparatus for automated manufacture of unit filters

AAF MCQUAY

Filter layer comparative testing method and apparatus

Arrangement for forming a layered fibrous mat of varied porosity

CHOI KYUNG JU

Filter material comprising an expanded polytetrafluoroethylene containing layer and a natural fiber containing layer

Tailored multilayered nano-fibrous filtration media and method of making

CHOI KYUNG-JU

Filter with EPTFE and method of forming

Process for making a polymeric fibrous material having increased beta content

(unassigned)

Self-supporting pocket fluid filter

CLEAN AND SCIENCE COMPANY LTD

System and method for making electret media