Patents by Inventor John D. O'Donoghue

John D. O'Donoghue 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).

  • Storage stable 2-methyl-1-naphthol couplers
    Patent number: 6045590
    Abstract: Compounds of Formula II ##STR1## wherein R.sub.3 is --COOCH.sub.3, --COCH.sub.3 or --COCH.sub.2 CH.sub.3 and R.sub.4 is hydrogen or R.sub.3 is hydrogen and R.sub.4 is --OCH.sub.3, --OC.sub.2 CH.sub.3, --OCH.sub.2 CH.sub.2 OH or --OCH.sub.2 CH.sub.2 OCH.sub.3 are storage stable and can be used in oxidative hairdye systems in place of the storage unstable 2-methyl-1-naphthol. Advantageously, it has been found to produce the same colors as 2-methyl-1-naphthol.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: April 4, 2000
    Assignee: Bristol-Myers Squibb Co.
    Inventors: Mu-Ill Lim, Yuh-Guo Pan, Linas R. Stasaitis, John D. O'Donoghue
  • Storage stable 2-methyl-1-naphthol couplers
    Patent number: 5672180
    Abstract: Compounds of Formula II ##STR1## wherein R.sub.3 is --COOCH.sub.3, --COCH.sub.3 or --COCH.sub.2 CH.sub.3 and R.sub.4 is hydrogen or R.sub.3 is hydrogen and R.sub.4 is --OCH.sub.3, --OCH.sub.2 CH.sub.3, --OCH.sub.2 CH.sub.2 OH or --OCH.sub.2 CH.sub.2 OCH.sub.3 are storage stable and can be used in oxidative hairdye systems in place of the storage unstable 2-methyl-1-naphthol. Advantageously, it has been found to produce the same colors as 2-methyl-1-naphthol.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: September 30, 1997
    Assignee: Clairol Incorporated
    Inventors: Mu-Ill Lim, Yuh-Guo Pan, Linas R. Stasaitis, John D. O'Donoghue
  • Storage stable 2-methyl-1-naphthol couplers
    Patent number: 5529583
    Abstract: Compounds of Formula II ##STR1## wherein R.sub.3 is --COCH.sub.3, --COCH.sub.3 or --COCH.sub.2 CH.sub.3 and R.sub.4 is hydrogen or R.sub.3 is hydrogen and R.sub.4 is --OCH.sub.3, --OCH.sub.2 CH.sub.3, --OCH.sub.2 CH.sub.2 OH or --OCH.sub.2 CH.sub.2 OCH.sub.3 are storage stable and can be used in oxidative hairdye systems in place of the storage unstable 2-methyl-1-naphthol. Advantageously, it has been found to produce the same colors as 2-methyl-1-naphthol.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: June 25, 1996
    Assignee: Clairol Incorporated
    Inventors: Mu-Ill Lim, Yuh-Guo Pan, Linas R. Stasaitis, John D. O'Donoghue