Patents by Inventor Una L. Hart

Una L. Hart 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).

  • Deodorant compositions and process of deodorizing using 2,4-disubstituted 6-hydroxy-1,3-dioxane compounds
    Patent number: 4078050
    Abstract: Offensive odors of animal origin are lessened or neutralized by application of deodorant compositions comprising 2,4-di (alkyl or aryl) substituted 6-hydroxy-1,3-dioxanes. The effectiveness of the compositions toward specific odors is increased by incorporation of acidic or basic components. The compositions can be further improved by the addition of other ingredients such as surfactants, chelating agents and antimicrobial agents.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: March 7, 1978
    Inventor: Una L. Hart
  • Coloring pen assembly
    Patent number: 3993409
    Abstract: A coloring pen assembly comprising a tubular barrel open at one end and holding at the other end a porous nib having a marking tip, an extended portion lying within the barrel, and saturated with soluble coloring matter. For activation, a porous plug fitting loosely within the barrel and snugly around the extended portion of the nib is saturated with a liquid solvent, e.g. water, and is inserted through the open end of the barrel and pressed into place.
    Type: Grant
    Filed: September 5, 1975
    Date of Patent: November 23, 1976
    Inventor: Una L. Hart