Patents by Inventor C. Carol Guilbert

C. Carol Guilbert 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).

  • Halogen free tapes & method of making same
    Publication number: 20050287360
    Abstract: A tape which includes a backing and an adhesive layer on a surface of the backing. The backing includes a halogen-free polymeric material, a halogen-free flame retardant, and a coupling agent. The tape is flame retardant when tested according to Section 4 of Underwriters Laboratories UL 510, Seventh Edition.
    Type: Application
    Filed: June 23, 2004
    Publication date: December 29, 2005
    Inventors: Rafael Garcia-Ramirez, C. Carol Guilbert, Mario Perez, Krishnakant Vora
  • Metal bonding film compositions
    Patent number: 6387508
    Abstract: An electrically insulating composition for bonding to metal and method for applying the composition in sheet form. The insulating composition comprises a polyolefin polymer adapted for elevated temperature crosslinking and a co-bonding agent mixed with the polyolefin polymer in an amount up to about 60 parts of tile co-bonding agent to 100 parts of the polyolefin polymer. Preferably, the insulating composition cures in contact with metal pre-heated to elevated temperatures in a range from about 140° C. to about 190° C. to provide a lap-shear bond strength between the electrically insulating composition and a metal substrate of from about 3.3 MPa to about 12 MPa.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: May 14, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: C. Carol Guilbert, David V. Mahoney, Rafael Garcia-Ramirez
  • Stabilized liquid enzyme-containing detergent compositions
    Patent number: 4243543
    Abstract: Enzyme activity of liquid proteolytic enzyme-containing detergent compositions is stabilized by adding an antioxidant and a hydrophilic polyol and stabilizing the pH of the composition.
    Type: Grant
    Filed: May 11, 1979
    Date of Patent: January 6, 1981
    Assignee: Economics Laboratory, Inc.
    Inventors: C. Carol Guilbert, William H. Scepanski
  • Stabilized liquid enzyme-containing detergent compositions
    Patent number: 4238345
    Abstract: Enzyme activity of liquid proteolytic enzyme-containing detergent compositions is stabilized by adding an antioxidant and a hydrophilic polyol and, when necessary, stabilizing the pH of the composition.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: December 9, 1980
    Assignee: Economics Laboratory, Inc.
    Inventor: C. Carol Guilbert