Patents by Inventor John J. Koch

John J. Koch 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).

  • Fingerprinting system and method
    Patent number: 5263742
    Abstract: A system and method for taking and developing a fingerprint wherein the subject's fingers are not dirtied or exposed to chemicals. The fingerprint is recorded on a layer of adhesive adhered to a sheet of transparent material. The print is developed by making a copy of it on a sensitized surface by back reflecting radiant energy through the adhesive whereby the print is imaged.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: November 23, 1993
    Inventor: John J. Koch
  • Fingerprinting system and method
    Patent number: 5114188
    Abstract: A system and method for taking and developing a fingerprint wherein the subject's fingers are not dirtied or exposed to chemicals. The fingerprint is recorded on a layer of adhesive adhered to a sheet of transparent material. The print is developed by making a copy of it on a sensitized surface by back reflecting radiant energy through the adhesive whereby the print is imaged.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: May 19, 1992
    Inventor: John J. Koch