Patents by Inventor Sheila A. Tesch

Sheila A. Tesch 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).

  • Antimicrobial composition containing photosensitizers articles, and methods of use
    Patent number: 6420455
    Abstract: Polymer compositions and articles incorporating them are provided that possess antimicrobial activity, preferably in both the light and the dark. Such compositions include one or more polymers and one or more photosensitizers.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: July 16, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin D. Landgrebe, John J. Stofko, Sheila A. Tesch, John C. Loperfido, David J. Hastings, Thomas J. Packard, Matthew T. Scholz, Linda K. Olson, Kaveh Pournoor, Monserrat R. Lalonde
  • Treating composition containing white oil
    Patent number: 4330422
    Abstract: A surface treating composition especially suited for cleaning and treating stainless steel comprising an aqueous emulsion of white mineral oil. An aerosol composition is also provided by the addition of a suitable amount of liquified normally gaseous propellant material.
    Type: Grant
    Filed: February 1, 1977
    Date of Patent: May 18, 1982
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Sheila A. Tesch
  • Wax-stripping cleaning composition
    Patent number: 4077896
    Abstract: A heavy-duty cleaning composition, especially suited for removing soil from baseboards, ceramic tile and walls and other hard-to-get-at areas and for removing wax or finish coatings from floors, baseboards and corners, contains (1) an aqueous solvent system including a water-soluble monobutyl glycol ether organic solvent and (2) a primary amine. Preferably, the composition also contains a water-soluble compatible thickening agent, sufficient compatible surfactant to enhance wetting the surface being cleaned and sufficient compatible water-soluble film-forming resin to inhibit rapid evaporation of the organic solvent and the amine.
    Type: Grant
    Filed: January 15, 1975
    Date of Patent: March 7, 1978
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Frederick J. Bunegar, Sheila A. Tesch