Patents by Inventor William H. Drohan

William H. Drohan 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).

  • Hemostatic sandwich bandage
    Patent number: 6762336
    Abstract: The present invention relates to a haemostatic multilayer bandage that comprises preferably a thrombin layer between two fibrinogen layers. The dressing may contain other resorbable materials such as glycolic acid or lactic acid based polymers or copolymers. The inventive haemostatic bandage is useful for the treatment of wounded tissue.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: July 13, 2004
    Assignee: The American National Red Cross
    Inventors: Martin J. MacPhee, William H. Drohan, Dawson Beall, Stanley A. Friedman, David Tuthill, Valdislav Bayer
  • Method of inactivating pathogens
    Publication number: 20020187068
    Abstract: The present invention introduces a class of compounds, 2-substituted carbonyl compounds, that are useful as disinfecting agents, and particularly useful in methods for the disinfection of biological fluids. Members of the class of compounds have been found to possess pathogen invactivating properties against a variety of pathogens. The compounds and methods disclosed herein are useful for disinfecting biological fluids such as blood and blood fractions, among others.
    Type: Application
    Filed: July 9, 2002
    Publication date: December 12, 2002
    Inventors: Shirley I. Miekka, William H. Drohan, Herbert Baumann, Ingrid Drevin, Jean-Luc Maloisel, Berit Akerlof
  • Method of inactivating pathogens
    Patent number: 6436344
    Abstract: The present invention introduces a class of compounds, 2-substituted carbonyl compounds, that are useful as disinfecting agents, and particularly useful in methods for the disinfection of biological fluids. Members of the class of compounds have been found to possess pathogen inactivating properties against a variety of pathogens. The compounds and methods disclosed herein are useful for disinfecting biological fluids such as blood and blood fractions, among others.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: August 20, 2002
    Assignees: American National Red Cross, Amersham Pharmacia Biotech AB
    Inventors: Shirley I. Miekka, William H. Drohan, Herbert Baumann, Ingrid Drevin, Jean-Luc Maloisel
  • Method for purification of alpha-1 proteinase inhibitor
    Patent number: 6093804
    Abstract: The methods of the present invention provide a simple means for separating active and inactive Alpha Proteinase Inhibitor (API). The methods further provide means for purifying API at high yield (>70%), and at levels of purity (>90%) and activity (>90%) not heretofore available. Moreover, the methods of the present invention are simple (i.e., two chromatographic steps) and efficient; and are thus especially suitable to large scale purification processes. These methods will contribute substantially to alleviating the unmet demand for API for therapeutic purposes.
    Type: Grant
    Filed: September 24, 1998
    Date of Patent: July 25, 2000
    Assignee: American National Red Cross
    Inventors: Annemarie H. Ralston, William H. Drohan