Patents by Inventor Alex H. Chung

Alex H. 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).

  • Dryer-activated fabric conditioning and antistatic compositions with improved perfume longevity
    Patent number: 5559088
    Abstract: The present invention relates to dryer-activated fabric softening compositions comprising: (A) fabric softening compounds; (B) a non-allylic perfume alcohol ester; and (C) optionally, (1) a carboxylic acid salt of a tertiary amine and/or a tertiary amine ester; and (2) a nonionic softener; wherein, preferably, the Iodine Value of the total number of fatty acyl groups present in (A), (C)(1), and (C)(2) is from about 3 to about 60. These compositions exhibit good antistatic properties as well as improved delivery from a substrate.
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: September 24, 1996
    Assignee: The Proctor & Gamble Company
    Inventors: John C. Severns, Mark R. Sivik, Frederick A. Hartman, Hugo R. G. Denutte, Jill B. Costa, Alex H. Chung
  • Biodegradable fabric softener compositions with improved perfume longevity
    Patent number: 5531910
    Abstract: The present invention relates to liquid and solid biodegradable fabric softener compositions combined with nonionic or anionic esters of a non-allylic alcohol perfumes. These compositions exhibit improved perfume longevity and reduced enviromental impact.
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: July 2, 1996
    Assignee: The Procter & Gamble Company
    Inventors: John C. Severns, Mark R. Sivik, Frederick A. Hartman, Hugo R. G. Denutte, Jill B. Costa, Alex H. Chung