Patents by Inventor Daniel Diefenbach

Daniel Diefenbach 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).

  • Method and apparatus for fingerprint detection
    Patent number: 7323207
    Abstract: A portable apparatus for detecting latent fingerprints that discharges a vapor of a cyanoacrylate-containing solution. The apparatus comprises a reservoir for holding a liquid solution comprising cyanoacrylate, a valve for controlling the release of the solution through a capillary flow passage, and a power supply for heating the capillary flow passage and vaporizing the solution. When cyanoacrylate vapor contacts latent fingerprints, the fingerprints are rendered visible.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: January 29, 2008
    Assignee: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, Daniel Diefenbach
  • Method and apparatus for fingerprint detection
    Publication number: 20050252444
    Abstract: A portable apparatus for detecting latent fingerprints that discharges a vapor of a cyanoacrylate-containing solution. The apparatus comprises a reservoir for holding a liquid solution comprising cyanoacrylate, a valve for controlling the release of the solution through a capillary flow passage, and a power supply for heating the capillary flow passage and vaporizing the solution. When the cyanoacrylate vapor contacts latent fingerprints, the fingerprints are rendered visible.
    Type: Application
    Filed: October 21, 2003
    Publication date: November 17, 2005
    Inventors: Walter Nichols, Daniel Diefenbach