Patents by Inventor Kirk K. Hwang

Kirk K. Hwang 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).

  • Disposable products
    Patent number: 4902553
    Abstract: A disposable article such as a diaper or feminine hygiene product having a rattle-free, liquid impermeable, vapor permeable, microporous, polymeric film having pores defining passages extending therethrough, the passages being partially filled with a rattle-reducing additive material and a method for making same is disclosed.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: February 20, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kirk K. Hwang, Linda W. Suszko
  • Porous film
    Patent number: 4824718
    Abstract: A disposable article such as a diaper or feminine hygiene product having a rattle-free, liquid impermeable, vapor permeable, microporous, polymeric film having pores defining passages extending therethrough, the passages being partially filled with a rattle-reducing additive material and a method for making same is disclosed.
    Type: Grant
    Filed: December 4, 1987
    Date of Patent: April 25, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Kirk K. Hwang