Patents by Inventor Tomaz R. Herzyk

Tomaz R. Herzyk 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).

  • Method for lyophilization of cyclophosphamide and product
    Patent number: 5418223
    Abstract: A process for preparing a pharmaceutical preparation consisting essentially of a lyophilized cake of cyclophosphamide monohydrate and a bulking agent which comprises freezing cyclophosphamide, a bulking agent, and water, lyophilizing part of the water, obtaining and melting a supersaturated cyclophosphamide-bulking agent solution, precipitating cyclophosphamide as a hydrated polymorph, refreezing the solution and lyophilizing the water not bound to cyclophosphamide or the bulking agent.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: May 23, 1995
    Assignee: Erbamont, Inc.
    Inventors: Nageswara R. Palepu, Tomaz R. Herzyk
  • Cyclophosphamide monohydrate and lactose
    Patent number: 5336669
    Abstract: A parmaceutical preparation consisting essentially of a lyophilized cake of cyclophosphamide monohydrate and lactose prepared by the process of freezing cyclophosphamide, lactose and water, lyophilizing part of the water, obtaining and melting a supersaturated cyclophosphamide-lactose solution, precipitating cyclophosphamide as a hydrated polymorph, refreezing the solution and lyophilizing the water not bound to cyclophosphamide or lactose.
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: August 9, 1994
    Assignee: Erbamont, Inc.
    Inventors: Nageswara R. Palepu, Tomaz R. Herzyk