Patents by Inventor Malcolm Alder

Malcolm Alder 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).

  • Containers and caps therefor
    Patent number: 4967922
    Abstract: A cap 6 has an outlet 8 and an air bleed valve 10 including a non return valve 18. The non return valve is isolated from the hydrostatic pressure which would prevent it opening, by a housing 12 and a breather tube 13.
    Type: Grant
    Filed: May 3, 1989
    Date of Patent: November 6, 1990
    Assignee: Imperial Chemical Industries PLC
    Inventor: Malcolm Alder