Patents by Inventor Della A. Wilkinson

Della A. Wilkinson 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).

  • Flourescent lipid reagent
    Patent number: 5871804
    Abstract: The invention disclosed relates to a composition and method for enhancing the contrast of the lipid component of fingerprints and the like. The composition includes a metal chelate of the structural formula I ##STR1## wherein R is a UV-absorbing aromatic group, X is an electron attracting group, G is a synergic group containing a suitable polar functional group, and M is a metal ion, a suitable water-soluble organic solvent and water, at pH of 3 to 10.
    Type: Grant
    Filed: June 23, 1995
    Date of Patent: February 16, 1999
    Assignee: Her Majesty the Queen in right of Canada as represented by the Solicitor General Acting Through the Commissioner of the Royal Canadian Mounted Police
    Inventors: Della A. Wilkinson, John E. Watkin
  • Enhancement of polycyanoacrylate-developed fingerprints
    Patent number: 5348159
    Abstract: The invention disclosed relates to a composition and method for enhancing the contrast of polycyanoacrylate-developed fingerprints and the like. The composition includes a metal chelate of the structural formula ##STR1## wherein R is a UV-absorbing aromatic group, X is an electron attracting group and M is a suitable metal ion, a suitable water-soluble organic solvent and water, at a pH of 3 to 10.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: September 20, 1994
    Assignee: Her Majesty the Queen in Right of Canada as represented by the Solicitor General of Canada
    Inventors: John E. Watkin, Della A. Wilkinson