Patents by Inventor Walter J. Krol

Walter J. Krol 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).

  • Total synthesis of taxol
    Patent number: 5527924
    Abstract: The present invention provides two basic routes for the total synthesis of taxol having the structure: ##STR1## The present invention also provides the intermediates produced in the above processes, processes for synthesizing these intermediates as well as analogs to taxol. Both the intermediates and analogs to taxol may prove to be valuable anticancer agents.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: June 18, 1996
    Assignee: Sloan-Kettering Institute for Cancer Research
    Inventors: Samuel J. Danishefsky, William G. Bornmann, Yves Queneau, Thomas V. Magee, Walter J. Krol
  • Total synthesis of taxol and analogues thereof
    Patent number: 5488116
    Abstract: The present invention provides three basic routes for the total synthesis of taxol having the structure: ##STR1## The present invention also provides the intermediates produced in the above processes, processes for synthesizing these intermediates as well as analogues of taxol and nortaxol.
    Type: Grant
    Filed: November 2, 1993
    Date of Patent: January 30, 1996
    Assignee: Sloan-Kettering Institute for Cancer Research
    Inventors: Samuel J. Danishefsky, William G. Bornmann, Yves Queneau, Thomas V. Magee, Walter J. Krol, John J. Masters, David K. Jung
  • Total synthesis of taxol
    Patent number: 5416225
    Abstract: The present invention provides two basic routes for the total synthesis of taxol having the structure: ##STR1## The present invention also provides the intermediates produced in the above processes, processes for synthesizing these intermediates as well as analogs to taxol. Both the intermediates and analogs to taxol may prove to be valuable anticancer agents.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: May 16, 1995
    Assignee: Sloan-Kettering Institute for Cancer Research
    Inventors: Samuel J. Danishefsky, William G. Bornmann, Yves Queneau, Thomas V. Magee, Walter J. Krol
  • Picture frame assembly
    Patent number: 4177590
    Abstract: The assembly comprises a frame having end and side frame members, each such member including an outside wall. An inclined rear wall and a front lip extend inwardly from the outside wall. An inside wall extends rearwardly from the front lip and has a rear end constituting a ledge for a glass pane, a picture and the like. Each of at least two retaining strips associated with at least two of the frame members has a side wall carrying an inwardly directed flange and an inclined tongue. A retaining strip is applied by inserting the tongue between the rear wall and the outside wall, then pushing the retaining strip toward such outside wall until the flange rests on the backing for the picture.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: December 11, 1979
    Assignee: Intercraft Industries Corporation
    Inventors: Lawrence P. Tushner, Walter J. Krol