Patents by Inventor Hengky Chang

Hengky Chang 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).

  • Nanoscale collagen particles and membranes
    Patent number: 10046088
    Abstract: Nano scale collagen particles can be obtained from an embrittling and attrition process that reduces the size of collagen particles to the nano scale. These nano scale collagen particles have many favorable properties such as providing beneficial and enhanced properties for cell seeding and wound healing. The nano scale collagen particles can be included in biocompatible (e.g., biostable or biodegradable) compositions and are useful for wound treatment and management, as well as in cell cultures and tissue engineering implants.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: August 14, 2018
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Hengky Chang, Henry Leung
  • NANOSCALE COLLAGEN PARTICLES AND MEMBRANES
    Publication number: 20150140064
    Abstract: Nano scale collagen particles can be obtained from an embrittling and attrition process that reduces the size of collagen particles to the nano scale. These nano scale collagen particles have many favorable properties such as providing beneficial and enhanced properties for cell seeding and wound healing. The nano scale collagen particles can be included in biocompatible (e.g., biostable or biodegradable) compositions and are useful for wound treatment and management, as well as in cell cultures and tissue engineering implants.
    Type: Application
    Filed: January 27, 2015
    Publication date: May 21, 2015
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Hengky CHANG, Henry LEUNG
  • Nanoscale collagen particles and membranes
    Patent number: 8951598
    Abstract: Nano scale collagen particles can be obtained from an embrittling and attrition process that reduces the size of collagen particles to the nano scale. These nano scale collagen particles have many favorable properties such as providing beneficial and enhanced properties for cell seeding and wound healing. The nano scale collagen particles can be included in biocompatible (e.g., biostable or biodegradable) compositions and are useful for wound treatment and management, as well as in cell cultures and tissue engineering implants.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: February 10, 2015
    Assignee: Empire Technology Development LLC
    Inventors: Hengky Chang, Henry Leung
  • NANOSCALE COLLAGEN PARTICLES AND MEMBRANES
    Publication number: 20120121793
    Abstract: Nano scale collagen particles can be obtained from an embrittling and attrition process that reduces the size of collagen particles to the nano scale. These nano scale collagen particles have many favorable properties such as providing beneficial and enhanced properties for cell seeding and wound healing. The nano scale collagen particles can be included in biocompatible (e.g., biostable or biodegradable) compositions and are useful for wound treatment and management, as well as in cell cultures and tissue engineering implants.
    Type: Application
    Filed: May 7, 2010
    Publication date: May 17, 2012
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Hengky Chang, Henry Leung