Patents by Inventor Virginia C. Marhevka

Virginia C. Marhevka 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).

  • Polymerizable system with a long work-life
    Patent number: 6951909
    Abstract: The present invention is directed to a polymerizable system. The polymerizable system comprises an organoborane, at least one polymerizable monomer, and a work-life extending agent.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: October 4, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: E. John Deviny, Virginia C. Marhevka
  • Polymerizable system with a long work-life
    Patent number: 6762261
    Abstract: The present invention is directed to a polymerizable system. The polymerizable system comprises an organoborane, at least one polymerizable monomer, and a work-life extending agent.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: July 13, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: E. John Deviny, Virginia C. Marhevka
  • Polymerizable system with a long work-life
    Publication number: 20020161155
    Abstract: The present invention is directed to a polymerizable system. The polymerizable system comprises an organoborane, at least one polymerizable monomer, and a work-life extending agent.
    Type: Application
    Filed: February 21, 2002
    Publication date: October 31, 2002
    Inventors: E. John Deviny, Virginia C. Marhevka
  • Adhesive of epoxy resin and OH-terminated polyester with C.sub.8 -C.sub.30 appended alk(en)yl
    Patent number: 6066699
    Abstract: This invention comprises a two-part epoxy adhesive composition. The composition comprises an epoxy resin having an average epoxide functionality of greater than one and an oligomeric polyester which is on average, terminated by at least two hydroxyl groups.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: May 23, 2000
    Assignee: 3M Innovative Properties Company
    Inventor: Virginia C. Marhevka
  • Epoxy adhesives with dithiooxamide adhesion promoters
    Patent number: 5712039
    Abstract: The invention provides a curable, structural epoxy adhesive composition comprising: (a) an epoxy resin; (b) a curing agent for the epoxy resin; and (c) a compound of the formula I: ##STR1## in which R.sup.1 and R.sup.2, which may be the same or different, are selected from an alkyl group, a hydroxyalkyl group, a cycloalkyl group, an aryl group, an arylalkyl group, or a heterocyclic group in which the one to three non-carbon atoms in the ring are independently selected from S, N, and O.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: January 27, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Virginia C. Marhevka, Allen L. Griggs, Kent S. Tarbutton
  • Film-forming teat sealer for prevention of mastitis and use thereof
    Patent number: 5017369
    Abstract: The disclosed teat sealer comprises:a major amount (e.g.>65 wt.-%) aqueous solvent medium, and more than 1 wt.-% but less than about 16 wt.-% (preferably 2-12 wt.-%) partially hydrolyzed grade polyvinyl alcohol containing at least about 2 mole-% (e.g. 4-30 mole-%) residual vinyl acetate units dissolved in the aqueous medium.an antimicrobially effective amount (e.g. 0.1-10%) of antimicrobial agent, such as a biguanidine salt which is compatible with aqueous polyvinyl alcohol;from 0 to about 10% by weight of an opacifying agent such as a polymeric latex containing 15-70% by weight polymer solids, the latax being uniformly distributed through the aqueous medium in a stable manner, andoptionally (but preferably) a water-soluble dye dissolved in the aqueous medium to impart to the composition a color such as blue.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: May 21, 1991
    Inventor: Virginia C. Marhevka