Patents by Inventor Daniel Tim-Wo Chu

Daniel Tim-Wo Chu 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).

  • Process for the preparation of enantiomerically homogeneous aminopyrrolidinyl naphthyridine and quinolone carboxylic acids.
    Patent number: 5099032
    Abstract: A process for the preparation of enantiomerically homogeneous aminopyrrolidinyl naphthyridine carboxylic acids and quinolone carboxylic acids, and for the preparation of intermediates that are useful in the production of these carboxylic acids.
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: March 24, 1992
    Assignee: Abbott Laboratories
    Inventor: Daniel Tim-Wo Chu
  • Tricyclic quinoline antineoplastic agents
    Patent number: 5071848
    Abstract: Isothiazolo-quinoline derivatives are described which are cytotoxic for various tumor cell lines and are useful in the treatment of neoplastic diseases.
    Type: Grant
    Filed: October 23, 1989
    Date of Patent: December 10, 1991
    Assignee: Abbott Laboratories
    Inventors: Daniel Tim-Wo Chu, Jacob J. Plattner, Linus L. Shen, Larry L. Klein
  • 12A-Deoxy chelocardin
    Patent number: 4104306
    Abstract: A new chemical compound, the 12a-deoxychelocardin has been synthesized and found to be a potent antibacterial. It can also be used as an intermediate for the preparation of a number of modified chelocardin analogs that are similarly active as antibacterials, e.g. the compounds carrying different substituents in the D-ring.
    Type: Grant
    Filed: May 5, 1976
    Date of Patent: August 1, 1978
    Assignee: Abbott Laboratories
    Inventors: Edith Bernstein, Daniel Tim-Wo Chu, Stuart Nicholas Huckin
  • 3,4-Dimethyl-5-isoxazolylsulfamylaniline
    Patent number: 4001265
    Abstract: A specific anilino derivative of chelocardin having high antibiotic activity is described. This new derivative shows unusually low toxicity and consequently a very high therapeutic index as chemotherapeutic agent against gram-negative organisms.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: January 4, 1977
    Assignee: Abbott Laboratories
    Inventors: Daniel Tim-Wo Chu, David Lyon Garmaise
  • Anilino derivatives of chelocardin
    Patent number: 3963774
    Abstract: A number of specific anilino derivatives of chelocardin having high antibiotic activity are described. These new derivatives show unusually low toxicity and consequently a very high therapeutic index as chemotherapeutic agents against gram-negative organisms.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: June 15, 1976
    Assignee: Abbott Laboratories
    Inventors: Daniel Tim-Wo Chu, David Lyon Garmaise