Patents by Inventor Donald A. Zehnder

Donald A. Zehnder 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).

  • Publication number: 20030017264
    Abstract: Methods for synthesizing luminescent nanoparticles and nanoparticles prepared by such methods are provided. The nanoparticles are prepared by a method in which an additive is included in the reaction mixture. The additive may be a Group 2 element, a Group 12 element, a Group 13 element, a Group 14 element, a Group 15 element, or a Group 16 element. In additions, a luminescent nanoparticle is provided that comprises a semiconductive core surrounded by an inorganic shell, an interfacial region and an additive present in the interfacial region or both the interfacial region and the shell.
    Type: Application
    Filed: July 17, 2002
    Publication date: January 23, 2003
    Inventors: Joseph A. Treadway, Donald A. Zehnder, Marc D. Schrier
  • Publication number: 20020144644
    Abstract: Nanocrystals are synthesized with a high degree of control over reaction conditions and hence product quality in a flow-through reactor in which the reaction conditions are maintained by on-line detection of characteristic properties of the product and by adjusting the reaction conditions accordingly. The coating of nanocrystals is achieved in an analogous manner.
    Type: Application
    Filed: December 26, 2001
    Publication date: October 10, 2002
    Applicant: Quantum Dot Corporation
    Inventors: Donald A. Zehnder, Marcel P. Bruchez, Joseph A. Treadway, Jonathan P. Earhart
  • Publication number: 20020083888
    Abstract: Nanocrystals are synthesized with a high degree of control and hence product quality control in a flow-through reactor in which the reaction conditions are maintained by on-line detection of characteristic properties of the product and by adjusting the reaction conditions accordingly. The coating of nanocrystals is achieved in an analogous manner.
    Type: Application
    Filed: December 28, 2000
    Publication date: July 4, 2002
    Inventors: Donald A. Zehnder, Marcel P. Bruchez, Joseph A. Treadway
  • Publication number: 20010034034
    Abstract: The use of semiconductor nanocrystals as detectable labels in various chemical and biological applications is disclosed. The methods find use for detecting a single analyte, as well as multiple analytes by using more than one semiconductor nanocrystal as a detectable label, each of which emits at a distinct wavelength.
    Type: Application
    Filed: June 21, 2001
    Publication date: October 25, 2001
    Applicant: Quantum Dot Corporation
    Inventors: Marcel P. Bruchez, R. Hugh Daniels, Stephen A. Empedocles, Vince E. Phillips, Edith Y. Wong, Donald A. Zehnder
  • Patent number: 6274323
    Abstract: The use of semiconductor nanocrystals as detectable labels in various chemical and biological applications is disclosed. The methods find use for detecting a single analyte, as well as multiple analytes by using more than one semiconductor nanocrystal as a detectable label, each of which emits at a distinct wavelength.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: August 14, 2001
    Assignee: Quantum Dot Corporation
    Inventors: Marcel P. Bruchez, R. Hugh Daniels, Stephen A. Empedocles, Vince E. Phillips, Edith Y. Wong, Donald A. Zehnder