Patents by Inventor Michael David Rickard

Michael David Rickard 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).

  • Rinse composition
    Patent number: 3941713
    Abstract: A machine dishwasher rinse aid having the property of imparting an anti-resoiling or non-stick finish to aluminium articles such as pans. The rinse aid contains an anti-resoiling agent which is preferably a monoalkylphosphate ester to achieve this effect. It also contains a nonionic surface active agent and a pH controller in the form of citric, lactic or glutaric acid.
    Type: Grant
    Filed: October 1, 1973
    Date of Patent: March 2, 1976
    Assignee: Lever Brothers Company
    Inventors: Peter Leonard Dawson, Michael David Rickard, Michael Tom Rothwell