Patents by Inventor Richard E. Cherpeck

Richard E. Cherpeck 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: 5296003
    Abstract: Poly(oxyalkylene) hydroxyaromatic ethers having the formula: ##STR1## or a fuel-soluble salt thereof; where n is an integer from 5 to 100; x is an integer from 0 to 10; R.sub.1 and R.sub.2 are each independently hydrogen, hydroxy, lower alkyl having 1 to 6 carbon atoms, or lower alkoxy having 1 to 6 carbon atoms; R.sub.3 and R.sub.4 are each independently hydrogen or lower alkyl having 1 to 6 carbon atoms; R.sub.5 is an acyl group of the formula: ##STR2## wherein y is 1, 2 or 3; R.sub.6 is a divalent hydrocarbyl radical, when y is 1, a trivalent hydrocarbyl radical, when y is 2, or tetravalent hydrocarbyl radical, when y is 3, said hydrocarbyl radicals having 1 to about 20 carbon atoms; and each Z is independently selected from the group consisting of: ##STR3## where each R.sub.7 is independently alkyl having 1 to 30 carbon atoms, phenyl, aralkyl having 7 to 36 carbon atoms or alkaryl having 7 to 36 carbon atoms.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: March 22, 1994
    Assignee: Chevron Research and Technology Company
    Inventor: Richard E. Cherpeck
  • Patent number: 5192335
    Abstract: A fuel additive composition comprising:(a) a poly(oxyalkylene) amine having at least one basic nitrogen atom and a sufficient number of oxyalkylene units to render the poly(oxyalkylene) amine soluble in hydrocarbons boiling in the gasoline or diesel range; and(b) a polyalkyl hydroxyaromatic compound or salt thereof wherein the polyalkyl group has sufficient molecular weight and carbon chain length to render the polyalkyl hydroxyaromatic compound soluble in hydrocarbons boiling in the gasoline or diesel range.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: March 9, 1993
    Assignee: Chevron Research and Technology Company
    Inventor: Richard E. Cherpeck
  • Patent number: 4584008
    Abstract: Compounds of the formula: ##STR1## wherein R.sup.1 is cyano, alkoxycarbonyl having 4 through 6 carbon atoms, lower alkylthiocarbonyl, phenoxycarbonyl, halophenoxycarbonyl having from 1 to 3 of the same or different halo ring substituents, N-lower alkylcarbamoyl, N-di(lower alkyl)carbamoyl, phenylmethoxycarbonyl, halophenylmethoxycarbonyl having from 1 to 3 of the same or different halo ring substituents;R.sup.2 is hydrogen or alkyl provided that when R.sup.1 is cyano, then R.sup.2 is alkyl;R.sup.3 is hydrogen, lower alkanoyl, benzoyl, or halobenzoyl having from 1 through 3 of the same or different halo ring substituents;R.sup.4 is hydrogen, 2-phenylvinyl or 2-halophenylvinyl having 1 through 3 of the same or different halo ring substituents;R.sup.
    Type: Grant
    Filed: September 20, 1984
    Date of Patent: April 22, 1986
    Assignee: Chevron Research Company
    Inventor: Richard E. Cherpeck
  • Patent number: 4417050
    Abstract: The 5-pyrimidyl- ethers of this invention possess good fungicidal, herbicidal and plant-growth regulating activity.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: November 22, 1983
    Assignee: Chevron Research Company
    Inventor: Richard E. Cherpeck
  • Patent number: 4407806
    Abstract: 3-Pyridyl ethers of this invention possess good fungicidal, herbicidal and plantgrowth regulating activity.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: October 4, 1983
    Assignee: Chevron Research Company
    Inventor: Richard E. Cherpeck