Patents by Inventor Alan D. Westland

Alan D. Westland 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).

  • Latent fingerprint detection
    Patent number: 4260645
    Abstract: Latent fingerprints can be detected and visualized by application to the suspected locale, of a solution, in a volatile organic solvent of selected silver salts soluble in said solvent. Suitable salts include silver perchlorate and silver trifluoroacetate. The solution is preferably applied as a spray. This non-aqueous solution minimizes smudging, "running", warping and other damage to water-sensitive material (usually inks, dyes and/or cellulosic substrates).
    Type: Grant
    Filed: January 2, 1979
    Date of Patent: April 7, 1981
    Assignee: Canadian Patents and Development Limited
    Inventors: F. Michael Kerr, Alan D. Westland