Patents by Inventor Susan Feierberg

Susan Feierberg 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).

  • Patent number: 4645618
    Abstract: Water soluble fluors useful in enhancing images obtained in autoradiography have the general formula:[F].sub.x [B].sub.y [S].sub.zF is a moiety which acts as a fluor, e.g., a dehydro derivative of a compound which is a fluor; preferred examples include 4-(2,5-diphenyloxazolyl), 1-napththylmethyl, 2-napththyl, and 4-[5-(2-phenyloxazolyl)]phenyl. S is a surfactant moiety which makes the molecule hydrophilic, e.g., dehydro derivatives of surfactants; preferred examples include polyethylene glycol derivatives, sulfonic acids or salts thereof, aryl sulfonates amines and quaternary ammonium compounds. B is a binding moiety which chemically binds the fluor moiety F with the surfactant S, and may be a chemical bond, or a disubstituted moiety such as an alkylene, e.g., methylene group. The variables x, y and z are integers which can generally vary from 1 to 10.
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: February 24, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Duk H. Lee, Susan Feierberg, Robert E. O'Brien
  • Patent number: 4522742
    Abstract: Water soluble fluors useful in enhancing images obtained in autoradiography have the general formula:[F].sub.x [B].sub.y [S].sub.zF is a moiety which acts as a fluor, e.g., a dehydro derivative of a compound which is a fluor; preferred examples include 4-(2,5-diphenyloxazolyl), 1-naphthylmethyl, 2-naphthyl, and 4-[5-(2-phenyloxazolyl)]phenyl. S is a surfactant moiety which makes the molecule hydrophilic, e.g., dehydro derivatives of surfactants; preferred examples include polyethylene glycol derivatives, sulfonic acids or salts thereof, aryl sulfonates, amines and quaternary ammonium compounds. B is a binding moiety which chemically binds the fluor moiety F with the surfactant S, and may be a chemical bond, or a disubstituted moiety such as an alkylene, e.g., methylene group. The variables x, y and z are integers which can generally vary from 1 to 10.
    Type: Grant
    Filed: February 25, 1982
    Date of Patent: June 11, 1985
    Assignee: E. I. Du Pont de Nemours and Company Inc.
    Inventors: Duk H. Lee, Susan Feierberg, Robert E. O'Brien