KC

Kyung-Ju Choi

AA Aaf-Mcquay: 21 patents #1 of 35Top 3%
AI Aaf International: 20 patents #1 of 11Top 10%
📍 Louisville, KY: #21 of 3,201 inventorsTop 1%
🗺 Kentucky: #78 of 11,577 inventorsTop 1%
Overall (All Time): #58,247 of 4,157,543Top 2%
48
Patents All Time

Issued Patents All Time

Showing 1–25 of 48 patents

Patent #TitleCo-InventorsDate
11590443 System and method for making electret media 2023-02-28
10617984 Tailored multilayered nano-fibrous filtration media and method of making 2020-04-14
10272375 Filter material comprising an expanded polytetrafluoroethylene containing layer and a natural fiber containing layer 2019-04-30
9587329 Process for making a polymeric fibrous material having increased beta content 2017-03-07
8152889 Filter with EPTFE and method of forming 2012-04-10
7959705 Filter with ePTFE and method of forming 2011-06-14
7896941 Product and method of forming a gradient density fibrous filter 2011-03-01
7837756 Filter with ePTFE and method of forming 2010-11-23
7687416 Arrangement for forming a layered fibrous mat of varied porosity 2010-03-30
7661540 Method of forming spaced pleated filter material and product of same 2010-02-16
7625418 Spacer arrangement for pleated filter 2009-12-01
7398887 Product and method of forming successive layers of face-to-face adjacent media with calculated pore size 2008-07-15
7390443 Method of forming successive layers of face-to-face adjacent media with calculated pore size 2008-06-24
7255723 Crest supported filter frame assembly and method Dennis R. Porter, Ronald Unthank 2007-08-14
7210914 Series apparatus for forming layered fibrous mat of differing fibers and controlled surfaces 2007-05-01
7112255 Thermobondable filter medium and border frame and method of making same Dennis R. Porter, Paul B. Ryan 2006-09-26
7105124 Method, apparatus and product for manufacturing nanofiber media 2006-09-12
7097684 Method of forming combined pleated scrim and filter media materials and product of same 2006-08-29
6908294 Apparatus for forming a layered fibrous mat of varied porosity 2005-06-21
6758878 Thermobondable filter medium and border frame and method of making same Dennis R. Porter, Paul B. Ryan 2004-07-06
6736914 Series arrangement for forming layered fibrous mat of differing fibers and controlled surfaces 2004-05-18
6652748 Treated filter media and frame 2003-11-25
6596205 Arrangement for forming a layered fibrous mat of varied porosity 2003-07-22
6409864 Method of assembly of pleated filter with spacer insert 2002-06-25
6398839 Pleated fluid filter medium frame Dennis R. Porter, Ronald E. Braswell 2002-06-04