Patents by Inventor Ruby E. Kirkup

Ruby E. Kirkup 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).

  • Patent number: 6322152
    Abstract: The invention relates to a toothbrush that provides good subgingival access while being gentle and non-irritating to the oral soft tissue. The toothbrush of the invention comprises a brush head and a handle. The brush head comprises tufts of bristles generally parallel to each other and arranged in rows. The rows of bristles comprise outer rows adjacent the periphery of the brush head and at least one inner row between the outer rows. The inner bristles are preferably polished on their free ends and the outer bristles are feathered. The outer bristles are preferably polished prior to being feathered. The inner bristles are preferably shorter than the outer bristles.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: November 27, 2001
    Assignee: McNeil-PPC, Inc.
    Inventors: Alan G. Trojanowski, Ruby E. Kirkup, Richard M. Prospero
  • Publication number: 20010030460
    Abstract: The invention relates to a toothbrush that provides good subgingival access while being gentle and non-irritating to the oral soft tissue. The toothbrush of the invention comprises a brush head and a handle. The brush head comprises tufts of bristles generally parallel to each other and arranged in rows. The rows of bristles comprise outer rows adjacent the periphery of the brush head and at least one inner row between the outer rows. The inner bristles are preferably polished on their free ends and the outer bristles are feathered. The outer bristles are preferably polished prior to being feathered. The inner bristles are preferably shorter than the outer bristles.
    Type: Application
    Filed: May 23, 2001
    Publication date: October 18, 2001
    Inventors: Alan G. Trojanowski, Ruby E. Kirkup, Richard M. Prospero
  • Patent number: 5116602
    Abstract: An antiplaque oral composition containing a low concentration of a sesquiterpene alcohol flavor compound to inhibit the formation of dental plaque in the presence of an additive selected from the group consisting of benzoic acid, a preservative, and a polycarboxylate and mixtures thereof, in an oral vehicle having a low pH of about 3-5.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: May 26, 1992
    Assignee: Colgate-Palmolive Company
    Inventors: Richard S. Robinson, Arthur B. Buzin, Ruby E. Kirkup
  • Patent number: D414607
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: October 5, 1999
    Assignee: McNeil-PPC, Inc.
    Inventors: Alan G. Trojanowski, Ruby E. Kirkup, Richard M. Prospero
  • Patent number: D414608
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: October 5, 1999
    Assignee: McNeil-PPC, Inc.
    Inventors: Alan G. Trojanowski, Ruby E. Kirkup, Richard M. Prospero