Patents by Inventor Laurence R. B. Hervey

Laurence R. B. Hervey 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).

  • Oxonated poly(alkylene oxide) surface treatment agents
    Patent number: 4766030
    Abstract: An oxonated poly (alkylene oxide) substantially devoid of hydrocarbon chains of 5 or more carbon atoms is used to treat substances bearing negative electrostatic charges, so as to reduce such charges without rendering the substance hyrophobic. In this manner static electricity can be reduced in textiles, paper or plastic film; glass or glass fibers can be lubricated; wood pulp can be debonded; anti-self sizing or water-dispersible paper can be made; clays, pigments and other minerals can be hydrophilized; bitumen can be recovered from oil or tar sands; and petroleum can be recovered from underground wells by secondary or tertiary recovery techniques.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: August 23, 1988
    Inventor: Laurence R. B. Hervey
  • Use of oxonated poly(alkylene oxides) as surface treatment agents
    Patent number: 4698259
    Abstract: An oxonated poly(alkylene oxide) substantially devoid of hydrocarbon chains of 5 or more carbon atoms is used to treat substances bearing negative electrostatic charges, so as to reduce such charges without rendering the substance hydrophobic. In this manner static electricity can be reduced in textiles, paper or plastic film; glass or glass fibers can be lubricated; wood pulp can be debonded; anti-self sizing or water-dispersible paper can be made; clays, pigments and other minerals can be hydrophilized; bitumen can be recovered from oil or tar sands; and petroleum can be recovered from underground wells by secondary or tertiary recovery techniques.
    Type: Grant
    Filed: August 21, 1985
    Date of Patent: October 6, 1987
    Inventor: Laurence R. B. Hervey