Patents by Inventor John M. Robb

John M. Robb 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).

  • Detergent compositions
    Patent number: 5225100
    Abstract: A tablet of compacted detergent powder comprises an anionic detergent-active compound, a detergency builder, and optionally other detergent ingredients. The tablet is the compaction product of a particulate mixture of:(a) from 2 to 40 wt % of a first particulate component comprising from 20 to 100 wt % of anionic detergent-active compound,(b) from 60 to 98 wt % of other ingredients, comprising from 0 to 3 wt % of anionic detergent-active compound.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: July 6, 1993
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Alan J. Fry, Michael J. Garvey, Geoffrey Newbold, Jonathon Osler, John M. Robb, Douglas Wraige