Patents by Inventor Hoo Chung

Hoo Chung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Fine fiber media layer
    Publication number: 20080110822
    Abstract: 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 of filter materials.
    Type: Application
    Filed: January 14, 2008
    Publication date: May 15, 2008
    Applicant: Donaldson Company, Inc.
    Inventors: Hoo Chung, John Hall, Mark Gogins, Douglas Cropoot, Thomas Weik
  • AIR FILTER WITH FINE FIBER AND SPUN BONDED MEDIA
    Publication number: 20070283808
    Abstract: 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 of filter materials.
    Type: Application
    Filed: April 6, 2006
    Publication date: December 13, 2007
    Applicant: Donaldson Company, Inc.
    Inventors: Hoo Chung, John Hall, Mark Gogins, Douglas Crofoot, Thomas Weik
  • BAG HOUSE FILTER WITH FINE FIBER AND SPUN BONDED MEDIA
    Publication number: 20070271883
    Abstract: 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 of filter materials.
    Type: Application
    Filed: April 6, 2006
    Publication date: November 29, 2007
    Applicant: Donaldson Company, Inc.
    Inventors: Hoo Chung, John Hall, Mark Gogins, Douglas Crofoot, Thomas Weik
  • POLYMER, POLYMER MICROFIBER, POLYMER NANOFIBER AND APPLICATIONS INCLUDING FILTER STRUCTURES
    Publication number: 20070271891
    Abstract: 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 of filter materials.
    Type: Application
    Filed: November 2, 2006
    Publication date: November 29, 2007
    Applicant: Donaldson Company, Inc.
    Inventors: Hoo Chung, John Hall, Mark Gogins, Douglas Crofoot, Thomas Weik
  • Polymer coated nanofibrillar structures and methods for cell maintenance and differentiation
    Publication number: 20070082393
    Abstract: 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 invention also provides methods for the long term culturing of cells using the polymer coated nanofibrillar structures. The polymer coated nanofibrillar structures of the invention have been found to be particularly useful for the growth and differentiation of cells, including neural precursors.
    Type: Application
    Filed: July 20, 2006
    Publication date: April 12, 2007
    Inventors: Muhammad Lodhi, Tahmina Naqvi, Gary Opperman, Hoo Chung, Melvin Schindler
  • POLYMER, POLYMER MICROFIBER, POLYMER NANOFIBER AND APPLICATIONS INCLUDING FILTER STRUCTURES
    Publication number: 20070012007
    Abstract: 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 of filter materials.
    Type: Application
    Filed: July 19, 2004
    Publication date: January 18, 2007
    Applicant: Donaldson Company, Inc.
    Inventors: Hoo Chung, John Hall, Mark Gogins, Douglas Crofoot, Thomas Weik
  • Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
    Publication number: 20060117730
    Abstract: 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 of filter materials.
    Type: Application
    Filed: January 16, 2006
    Publication date: June 8, 2006
    Applicant: Donaldson Company, Inc.
    Inventors: Hoo Chung, John Hall, Mark Gogins, Douglas Crofoot, Thomas Weik
  • Nanofibrillar structure and applications including cell and tissue culture
    Publication number: 20050095695
    Abstract: 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, lipophilic molecule, or chemically modified surface. The nanofibers can be used in a variety of applications including the formation of nanofibrillar structures for cell culture and tissue engineering.
    Type: Application
    Filed: November 5, 2003
    Publication date: May 5, 2005
    Inventors: Melvin Shindler, Hoo Chung