Patents by Inventor Clive D. R. MacGregor

Clive D. R. MacGregor 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).

  • Absorption of carbon dioxide
    Patent number: 4407723
    Abstract: The invention disclosed is a novel method of making an improved carbon dioxide absorbing material. A primary carbon dioxide absorbent is employed, specifically a group IA and IIA metal hydroxide, and various combinations of additives which modify the properties of the primary absorbent, in the form of an aqueous solution, and sprayed onto the surface of the primary absorbent.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: October 4, 1983
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National Defence
    Inventors: Clive D. R. MacGregor, William G. Forsyth