Patents by Inventor Robert K. Zee-Cheng

Robert K. Zee-Cheng 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).

  • 5,8-dichloro-4-hydroxy-1-[(aminoalkyl) amino]-9,10-anthracenediones, pharmaceutical compositions and use
    Patent number: 4782092
    Abstract: Chemical compounds are provided that are novel 5,8-dichloro-4-hydroxy-1-[(aminoalkyl)amino]-9,10-anthracenediones (I), as well as a method for their production, pharmaceutical compositions comprising the compounds, and methods of treatment using the compounds in dosage form. Compounds of the invention have pharmacological properties and are useful antimicrobial agents and antitumor agents.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: November 1, 1988
    Assignee: Mid-America Cancer Center
    Inventors: Robert K. Zee-Cheng, Chia C. Cheng
  • 3,6-disubstituted-1,8-naphthalimides and methods for their production and use
    Patent number: 4665071
    Abstract: Chemical compounds are provided that are novel 3,6-disubstituted-1,8-naphthalimides (I), as well as methods for their production, pharmaceutical compositions comprising the compounds, and methods of treatment using the compounds in dosage form. Compounds of the invention have pharmacological properties and are useful antimicrobial agents and antitumor agents.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: May 12, 1987
    Assignee: Warner-Lambert Company
    Inventors: Robert K. Zee-Cheng, Chia C. Cheng
  • 3,6-disubstituted-1,8-naphthalimides
    Patent number: 4614820
    Abstract: Chemical compounds are provided that are novel 3,6-disubstituted-1,8-naphthalimides (I), as well as methods for their production, pharmaceutical compositions comprising the compounds, and methods of treatment using the compounds in dosage form. Compounds of the invention have pharmacological properties and are useful antimicrobial agents and antitumor agents. ##STR1## .
    Type: Grant
    Filed: February 13, 1986
    Date of Patent: September 30, 1986
    Assignee: Warner-Lambert Co.
    Inventors: Robert K. Zee-Cheng, Chia C. Cheng
  • 3,6-disubstituted-1,8-naphthalimides and methods for their production and use
    Patent number: 4594346
    Abstract: Chemical compounds are provided that are novel 3,6-disubstituted-1,8-naphthalimides (I), as well as methods for their production, pharmaceutical compositions comprising the compounds, and methods of treatment using the compounds in dosage form. Compounds of the invention have pharmacological properties and are useful antimicrobial agents.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: June 10, 1986
    Assignee: Warner-Lambert Company
    Inventors: Robert K. Zee-Cheng, Chia C. Cheng
  • 3,6-Dinitro-1,8-naphthalimides
    Patent number: 4499266
    Abstract: Chemical compounds are provided that are novel 3,6-dinitro-1,8-naphthalimides (I), as well as a method for their production, pharmaceutical compositions comprising the compounds, and methods of treatment using the compounds in dosage form. Compounds of the invention have pharmacological properties and are useful antimicrobial agents and antitumor agents.
    Type: Grant
    Filed: April 1, 1983
    Date of Patent: February 12, 1985
    Assignee: Warner-Lambert Company
    Inventors: Chia C. Cheng, Robert K. Zee-Cheng
  • Anti-neoplastic 1,4-bis-(substituted aminoalkyl amino)-anthraquinones
    Patent number: 4310666
    Abstract: An antineoplastic 1,4-bis-substituted-9-10-anthracenedione having the formula ##STR1## wherein W, X, Y and Z are each independently selected from the group consisting of hydrogen, OH, NH.sub.2, OCH.sub.3, N(CH.sub.3).sub.2, F, Cl, Br, I, alkyl groups containing from 1-8 carbon atoms, glucosides, phenyl and substituted phenyl, and R is selected from the group consisting of alkyl amino groups containing from 1-8 carbon atoms, alkylaminoalkyl groups containing from 1-8 carbon atoms, substituted alkylamino-alkyl groups containing from 1-8 carbon atoms, and substituted aminoaryl groups.
    Type: Grant
    Filed: June 19, 1979
    Date of Patent: January 12, 1982
    Assignee: United States of America
    Inventors: Robert K. Zee-Cheng, Chia-Chung Cheng