Patents by Inventor Frederick J. Cornforth

Frederick J. Cornforth 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).

  • Patent number: 5672793
    Abstract: Hydrocarbon-containing fluid compositions are provided comprising at least one hydrocarbon fluid, at least one heteroaromatic, and at least one hydrazine additive. The resulting composition has reduced temporal formation of colored materials and/or gummy deposits. Additionally, antioxidant additives are combined with the above composition and provide a further reduction in the formation of colored materials and/or gummy deposits.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 30, 1997
    Assignee: Phillips Petroleum Company
    Inventors: Joseph E. Bares, Byron G. Johnson, Frederick J. Cornforth
  • Patent number: 5470457
    Abstract: Hydrocarbon-containing fluid compositions are provided comprising at least one hydrocarbon fluid, at least one heteroaromatic, and at least one hydrazine additive. The resulting composition has reduced temporal formation of colored materials and/or gummy deposits. Additionally, antioxidant additives are combined with the above composition and provide a further reduction in the formation of colored materials and/or gummy deposits.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: November 28, 1995
    Assignee: Phillips Petroleum Company
    Inventors: Joseph E. Bares, Byron G. Johnson, Frederick J. Cornforth
  • Patent number: 5319091
    Abstract: A composition that, when present in a polymer matrix, reduces the deleterious effect of UV light absorption by the polymer is provided, which comprises a sulfur-containing derivative of hydroxyphenylbenzotriazole having the formula of: ##STR1## wherein each X is selected from the group consisting of hydrogen, halogens, cyano, alkyl, phenyl group, biphenyl group, arylthio, amine, ketone, aldehyde, alkoxy, hydroxy, carboxylic acid group, oligomer and combinations thereof and can have carbon atoms up to about 20; n is a whole number from 1 to 5; n' is a whole number from 0 to 4; n" is a whole number from 1 to 2 and each n" can be the same or different; q is an integer from 1 to 10; each Y is selected from the group consisting of --S(O) (O)--, --S(O)--, and --S--; each R can be selected from the group consisting of hydrogen, alkyl group, alkenyl group, aralkyl group, alkaryl group, and combinations thereof and can have 0 to about 10 carbon atoms; each OH group can be at either the 2'- or the 6'-position, or both.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: June 7, 1994
    Assignee: Phillips Petroleum Company
    Inventors: Paul J. DesLauriers, Paritsoh K. Das, Darryl R. Fahey, Frederick J. Cornforth