Patents by Inventor Ammanuel Mehreteab

Ammanuel Mehreteab 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).

  • Light duty microemulsion liquid detergent composition containing an aniocic/cationic complex
    Patent number: 4919839
    Abstract: A light duty microemulsion liquid detergent composition, useful for removing greasy soils from surfaces with both neat and dilute forms of the detergent composition, includes a moderately water soluble complex of anionic and cationic surfactants, in which complex the anionic and cationic moieties are in essentially equivalent or equimolar proportions, an anionic detergent, a co-surfactant, an organic solvent and water.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: April 24, 1990
    Assignee: Colgate Palmolive Co.
    Inventors: Patrick Durbut, Ammanuel Mehreteab, Myriam Mondin, Guy Broze