Patents by Inventor Alan Obligin

Alan Obligin 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 radiopaque heavy metal polymer complexes, compositions of matter and articles prepared therefrom
    Patent number: 5024232
    Abstract: Novel radiopaqaue materials comprise heavy metal salts, such as bismuth and uraniuim salts complexed with a polymer. The metallic complexes which are permanent, nonleachable and have radiopacities at least equivalent to that of aluminum do not adversely affect the mechanical and physical properties of compositions. They are useful as medical and dental resins, in fabricating medical and dental appliances, prosthetic devices, radiation shielding devices and radiopaque polyester fabrics for clothing.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: June 18, 1991
    Assignee: The Research Foundation of State University of NY
    Inventors: Johannes Smid, Israel Cabasso, Alan Obligin, H. Ralph Rawls
  • Novel radiopaque heavy metal polymer complexes, compositions of matter and articles prepared therefrom
    Patent number: 4882392
    Abstract: Novel radiopaque materials comprise heavy metal salts, such as bismuth and uranium salts complexed with a polymer. The metallic complexes which are permanent, nonleachable and have radiopacities at least equivalent to that of aluminum do not adversely affect the mechanical and physical properties of compositions. They are useful as medical and dental resins, in fabricating medical and dental appliances, prosthetic devices, radiation shielding devices and radiopaque polyester fabrics for clothing.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: November 21, 1989
    Assignee: The Research Foundation of State University of New York
    Inventors: Johannes Smid, Israel Cabasso, Alan Obligin, H. Ralph Rawls
  • Novel radiopaque barium polymer complexes, compositions of matter and articles prepared therefrom
    Patent number: 4866132
    Abstract: Radiopaque polymeric materials comprising halogenated barium salts, homogeneously distributed at the molecular level, provide permanent, nonleachable radiopacities at least equivalent to pure aluminum without adversely affecting mechanical or physical properties of compositions in which they are employed.
    Type: Grant
    Filed: April 17, 1986
    Date of Patent: September 12, 1989
    Assignee: The Research Foundation of State University of New York
    Inventors: Alan Obligin, Du W. Xia, Ruth Silberman-Hazony, H. Ralph Rawls, Israel Cabasso, Johannes Smid