Patents by Inventor Robert Twieg

Robert Twieg 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).

  • Fluorophore compounds and their use in biological systems
    Publication number: 20070134737
    Abstract: Fluorophore compounds and methods for their use are disclosed. The fluorophores contain a 2-dicyanomethylen-3-cyano-2,5-dihydrofuran (DCDHF) moiety and one or more donor groups conjugated to the 2-dicyanomethylen-3-cyano-2,5-dihydrofuran group. The donor groups can contain atoms with free electron pairs such as oxygen, sulfur, nitrogen, or phosphorous. The fluorophore compounds can be used to label and detect biological molecules and biological structures either in vivo or in vitro.
    Type: Application
    Filed: January 19, 2007
    Publication date: June 14, 2007
    Applicant: Stanford University
    Inventors: William Moerner, Robert Twieg, Douglas Kline, Meng He
  • FLUOROPHORE COMPOUNDS AND THEIR USE IN BIOLOGICAL SYSTEMS
    Publication number: 20050009109
    Abstract: Fluorophore compounds and methods for their use are disclosed. The fluorophores contain a 2-dicyanomethylen-3-cyano-2,5-dihydrofuran (DCDHF) moiety and one or more donor groups conjugated to the 2-dicyanomethylen-3-cyano-2,5-dihydrofuran group. The donor groups can contain atoms with free electron pairs such as oxygen, sulfur, nitrogen, or phosphorous. The fluorophore compounds can be used to label and detect biological molecules and biological structures either in vivo or in vitro.
    Type: Application
    Filed: July 8, 2003
    Publication date: January 13, 2005
    Applicant: STANFORD UNIVERSITY
    Inventors: William MOERNER, Robert TWIEG, Douglas KLINE, Meng HE
  • Printing medium and use thereof
    Patent number: 4443302
    Abstract: A printing medium which includes a substrate coated with a compound of the formula: ##STR1## wherein R.sub.3 is a ring group having certain substituents in at least one ortho position with respect to the atom connected to C.dbd.O; and each R.sub.1 and R.sub.2 individually is aryl or alkaryl or are interconnected to form with the nitrogen atom a phenothiazine, phenoxazine, or phenazine or substituted derivative; and coated with an oxidizing agent or reduced form thereof; and method of use.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: April 17, 1984
    Assignee: International Business Machines Corporation
    Inventors: Paul L. Gendler, Robert Twieg