1
Hoo Young Chung, Stanley B Miller III, Donald R Monson, Timothy J Walsh: Process for separating sterilant gas from diluent gas through a selective membrane. Donaldson Company, Merchant Gould Smith Edell Welter & Schmidt, December 16, 1997: US05698011 (19 worldwide citation)

A process for separating the components of a gas mixture, including a sterilant gas and a diluent gas is disclosed. The gas mixture is fed to a membrane separation unit within which a perm-selective membrane is located which allows migration of diluent gas and sterilant gas at different rates. Both ...


2
Hoo Young Chung: Porous products manufactured from polytetrafluoroethylene treated with a perfluoroether fluid and methods of manufacturing such products. Donaldson Company, Merchant & Gould P C, October 26, 1999: US05972449 (17 worldwide citation)

Porous materials suitable for a variety of uses including waterproof/breathable fabrics, air filters, liquid filters, liquid/liquid separation membranes, vascular grafts, mechanical seals, etc. which comprises an intimate combination of about 50 to 99.9 wt % polytetrafluoroethylene polymer and about ...


3
Melvin S Schindler, Hoo Young Chung: Nanofibrillar structure and applications including cell and tissue culture. Michigan State University, Merchant & Gould P C, April 27, 2010: US07704740 (8 worldwide citation)

A nanofibrillar structure for cell culture and tissue engineering is disclosed. The nanofibrillar structure can be used in a variety of applications including methods for proliferating and/or differentiating cells and manufacturing a tissue. Also disclosed is an improved nanofiber comprising a lipid ...


4
Hoo Young Chung: Porous products manufactured from polytetrafluoroethylene treated with a perfluoroether fluid and method of manufacturing such products. Donaldson Company, Merchant Gould Smith Edell Welter & Schmidt P A, February 9, 1999: US05869156 (7 worldwide citation)

Porous materials suitable for a variety of uses including waterproof/breathable fabrics, air filters, liquid filters, liquid/liquid separation membranes, vascular grafts, mechanical seals, etc. which comprises an intimate combination of about 50 to 99.9 wt % polytetrafluoroethylene polymer and about ...


5
Hoo Young Chung, John R B Hall, Mark A Gogins, Douglas G Crofoot, Thomas M Weik: Fine fiber media layer. Donaldson Company, Pauly DeVries Smith & Deffner, August 1, 2017: US09718012

Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. The microfiber and nanofiber structures can be used in a variety of useful applications including the formation ...


6
Suresh L Shenoy, Hoo Young Chung, Thomas M Weik: Fine fibers made from polymer crosslinked with resinous aldehyde composition. Donaldson Company, Mueting Raasch & Gebhardt P A, March 7, 2017: US09587328

A fine fiber can be made having a structure with an axial core and a coating layer. The fiber can have a polymer core and one or two layers surrounding the core. The fine fiber can be made from a polymer material and a resinous aldehyde (e.g., melamine-aldehyde) composition such that the general str ...


7
Melvin S Schindler, Hoo Young Chung: Nanofibrillar structure and applications including cell and tissue culture. Board of Trustees of Michigan State University, Merchant & Gould, February 26, 2013: US08383408

A nanofibrillar structure for cell culture and tissue engineering is disclosed. The nanofibrillar structure can be used in a variety of applications including methods for proliferating and/or differentiating cells and manufacturing a tissue. Also disclosed is an improved nanofiber comprising a lipid ...


8
Mark A Gogins, Hoo Young Chung, Douglas G Crofoot, Ismael Ferrer, Dmitry Luzhansky: Air permeable garment and fabric with integral aerosol filtration. Merchant & Gould PC, June 17, 2004: US20040116025-A1

A multilayer fabric for protection from aerosol and gas phase agents comprising a bilayer structure comprising an unfilled Fine fiber layer substantially free of materials within the pores of the Fine fiber layer secured to an outer shell, the Fine fiber layer acting as an aerosol filter, and an opt ...


9
Muhammad Lodhi, Tahmina Naqvi, Gary Opperman, Hoo Young Chung, Melvin S Schindler: Polymer coated nanofibrillar structures and methods for cell maintenance and differentiation. Kagan Binder Pllc, April 12, 2007: US20070082393-A1

The invention provides cell-adherent polymeric coatings for articles having a nanofibrillar structure. The coatings include a synthetic, non-biodegradable polymer having at least one pendent amine group, wherein the polymer is covalently immobilized on the article via latent reactive groups. The inv ...


10
Melvin S Shindler, Hoo Young Chung: Nanofibrillar structure and applications including cell and tissue culture. Merchant & Gould PC, May 5, 2005: US20050095695-A1

A nanofibrillar structure for cell culture and tissue engineering is disclosed. The nanofibrillar structure can be used in a variety of applications including methods for proliferating and/or differentiating cells and manufacturing a tissue. Also disclosed is an improved nanofiber comprising a lipid ...