Patents by Inventor Ernest J. Bianco

Ernest J. Bianco 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).

  • Novel crystalline forms of prazosin hydrochloride
    Patent number: 4092315
    Abstract: The invention relates to novel and valuable crystalline forms of the hypotensive agent prazosin hydrochloride. The anhydrous .alpha.-form is preferred because it is relatively non-hygroscopic and hence possesses important advantages in handling and formulation. The polyhydrate form of prazosin hydrochloride is preferred because of its low, uniform rate of dissolution.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: May 30, 1978
    Assignee: Pfizer Inc.
    Inventor: Ernest J. Bianco