Patents by Inventor Mu-Ill Lim

Mu-Ill Lim 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).

  • N.sup.1 trifluoroalkyl substituted 2-nitro-p-phenylenediamine dyes and hair dyeing compositions and methods thereof
    Patent number: 5186716
    Abstract: N.sup.1 -Trifluoroalkyl substituted 2-nitro-p-phenylenediamines, compositions containing same, and their use as direct dyes for keratinous fibers are disclosed.
    Type: Grant
    Filed: September 13, 1991
    Date of Patent: February 16, 1993
    Assignee: Clairol Incorporated
    Inventors: Mu-Ill Lim, Yuh-Guo Pan
  • Benzoxazine dyes
    Patent number: 5118323
    Abstract: Novel benzoxazine compounds of the structure ##STR1## wherein X and Y are independently selected from the group hydrogen, alkyl, alkoxyalkyl, aminoalkyl, hydroxyalkyl and hydroxyaminoalkyl, each alkyl moiety having 1 to 6 carbons, and m=1, 2, or 3, have been found suitable as hair dyes.
    Type: Grant
    Filed: August 29, 1991
    Date of Patent: June 2, 1992
    Assignee: Clairol, Inc.
    Inventors: Mu-Ill Lim, Nancy A. Botta
  • Benzoxazine dyes
    Patent number: 5055110
    Abstract: Novel benzoxazine compounds of the structure ##STR1## wherein X and Y are independently selected from the group hydrogen, alkyl, alkoxyalkyl, aminoalkyl, hydroxyalkyl and hydroxyaminoalkyl, each alkyl moiety having 1 to 6 carbons, and m=1, 2 or 3, have been found suitable as hair dyes.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: October 8, 1991
    Assignee: Clairol Incorporated
    Inventors: Mu-Ill Lim, Nancy A. Botta
  • Antiviral and anticancer cyclopentenyl cytosine
    Patent number: 4975434
    Abstract: Cyclopentenyl pyrimidine compounds have potent anti-viral, anti-tumor and differentiating activity. Of these compounds, cyclopentenyl cytosine has proved to be particularly effective in a variety of tumors, as well as having good antiviral activity and potent differentiating properties.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: December 4, 1990
    Assignee: The United States of America as represented by the Secretary of the Department of Health and Human Services
    Inventors: Victor E. Marquez, John S. Driscoll, Mu-Ill Lim, Christopher K. Tseng, Alberto Haces, Robert I. Glazer
  • 3-deazaneplanocin, intermediates for it, and antiviral composition and method of treatment using it
    Patent number: 4968690
    Abstract: The new compound 3-deazaneplanocin A has been discovered to have potent anti-viral, anti-tumor activity and differentiating activity. A simple method for preparing 3-deazaneplanocin A has been developed involving nucleophilic substitution, which method can also be used to prepare a great variety of carbocyclic nucleosides.
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: November 6, 1990
    Assignee: United States Government as represented by the Secretary of the Dept. of Health and Human Services
    Inventors: Victor E. Marquez, John S. Driscoll, Mu-Ill Lim, Christopher K. Tseng, Alberto Haces, Robert I. Glazer
  • Sulfur-containing nitroaminobenzene dyes, process and hair dye compositions
    Patent number: 4799934
    Abstract: Novel sulfur containing nitroamino benzene dyes of formula: ##STR1## and salts thereof wherein (a) R.sub.1 and R.sub.2 are the same or different and are selected from the group consisting of alkyl, hydroxyalkyl, polyhydroxyalky, aminoalkyl, monoalkylamioalkyl and dialkylaminoalkyl,wherein(b) n is 0, 1 or 2, and wherein(c) the group ##STR2## occupies a position that is meta or para to the group-NHR.sub.1 ; a process for synthesizing these compounds and their use as direct dyeing hair dyes are being disclosed.
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: January 24, 1989
    Assignee: Clairol Incorporated
    Inventors: Mu-Ill Lim, James S. Anderson