Patents by Inventor Don STEVENSON

Don STEVENSON 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: 10745639
    Abstract: A composition having a compound having the structure: wherein each R is an independently selected alkylphenol-free moiety that is a C1-20 alkyl, C2-22 alkenyl, C6-40 cycloalkyl, C7-40 cycloalkylene, C3-20 methoxy alkyl glycol ether, C3-20 alkyl glycol ether, or Y—OH moiety; wherein each Y is an independently selected alkylphenol-free moiety that is a C2-40 alkylene, C7-40 cycloalkylene, or C3-40 alkyl lactone moiety; wherein m is an integer ranging from 1 to 100; and wherein x is an integer ranging from 1 to 1000.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: August 18, 2020
    Assignee: Dover Chemical Corporation
    Inventors: Mick Jakupca, Don Stevenson, John Nussbaumer, Jacob Weingart
  • Publication number: 20180334550
    Abstract: A composition having a film having linear low density polyethylene and a first antioxidant component that is: wherein each R moiety is independently selected and is a C8-C20 alkyl moiety.
    Type: Application
    Filed: October 2, 2017
    Publication date: November 22, 2018
    Inventors: Mick JAKUPCA, Jacob LANCE, Don STEVENSON, Jacob Weingart
  • Publication number: 20180237719
    Abstract: A composition having a compound having the structure: wherein each R is an independently selected alkylphenol-free moiety that is a C1-20 alkyl, C2-22 alkenyl, C6-40 cycloalkyl, C7-40 cycloalkylene, C3-20 methoxy alkyl glycol ether, C3-20 alkyl glycol ether, or Y—OH moiety; wherein each Y is an independently selected alkylphenol-free moiety that is a C2-40 alkylene, C7-40 cycloalkylene, or C3-40 alkyl lactone moiety; wherein m is an integer ranging from 1 to 100; and wherein x is an integer ranging from 1 to 1000.
    Type: Application
    Filed: February 20, 2018
    Publication date: August 23, 2018
    Inventors: Mick JAKUPCA, Don STEVENSON, John NUSSBAUMER, Jacob WEINGART
  • Patent number: 9963572
    Abstract: A composition having polyvinylchloride; and a chlorinated ester having the chemical structure: wherein R1 is a C6-22 chlorinated-hydrocarbon moiety, wherein R2 is a C1-C18 hydrocarbon moiety, wherein n is 1, 2, 3, or 4, wherein if n is greater than 1, each R1 is the same or different; and wherein the chlorinated ester is 15-70% by weight chlorine; wherein the chlorinated ester is a product of a process that uses fatty-acid-ester reactants having less than two C?C double bonds; and wherein the chlorinated ester is a product of a process that does not use fatty-acid-ester reactants having two or more C?C double bonds.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: May 8, 2018
    Assignee: Dover Chemical Corporation
    Inventors: Michael Jakupca, Don Stevenson, Jacob Weingart, John Regula
  • Publication number: 20170204320
    Abstract: A lubricant composition having the non-water reaction products produced by a process having the step of reacting the following-three reactants in a condensation reaction: i) oleic acid, ii) triethanolamine, and iii) a polyol selected from the group consisting of pentaerythritol and trimethylolpropane.
    Type: Application
    Filed: January 17, 2017
    Publication date: July 20, 2017
    Inventors: Duong Nguyen, Ben Rohr, Don STEVENSON
  • Publication number: 20160369086
    Abstract: A composition having polyvinylchloride; and a chlorinated ester having the chemical structure: wherein R1 is a C6-22 chlorinated-hydrocarbon moiety, wherein R2 is a C1-C18 hydrocarbon moiety, wherein n is 1, 2, 3, or 4, wherein if n is greater than 1, each R1 is the same or different; and wherein the chlorinated ester is 15-70% by weight chlorine; wherein the chlorinated ester is a product of a process that uses fatty-acid-ester reactants having less than two C?C double bonds; and wherein the chlorinated ester is a product of a process that does not use fatty-acid-ester reactants having two or more C?C double bonds.
    Type: Application
    Filed: February 26, 2016
    Publication date: December 22, 2016
    Inventors: Michael Jakupca, Don Stevenson, Jacob Weingart, John Regula
  • Publication number: 20150218433
    Abstract: A drilling-fluid composition having an oil-based mud, water-based mud, or synthetic-based mud; and a fluid lubricant having a pour point ranging from ?5° C. to ?30° C., the fluid lubricant having a sulfurized fatty ester, a sulfurized olefin, or a combination thereof, wherein the sulfurized fatty ester is 5 to 15% by weight sulfur and selected from the group consisting of sulfurized biodiesel; sulfurized methyl oleate, and sulfurized methyl esters derived from vegetable oil, wherein the sulfurized olefin is 5 to 15% by weight sulfur and selected from the group consisting of sulfurized alpha or internal olefins ranging from C8 to C18; and the fluid lubricant being present in the composition in an amount ranging from 0.1 to 10% by weight.
    Type: Application
    Filed: February 4, 2015
    Publication date: August 6, 2015
    Inventors: Duong Nguyen, Don Stevenson, Ben Rohr
  • Publication number: 20140080948
    Abstract: A composition having a polymeric ester having the formula: wherein each R is the same or different and independently selected from the group consisting of H, C1-20 alkyl carboxylate, C3-22 alkenyl carboxylate, C6-40 cycloalkyl carboxylate, and C6-40 cycloalkylene carboxylate; R2 is selected from the group consisting of C1-20 alkyl, C3-22 alkenyl, C6-40 cycloalkyl, and C6-40 cycloalkylene; and at least one polymer additive.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 20, 2014
    Applicant: Dover Chemical Corporation
    Inventors: Don STEVENSON, Jacob LANCE, Michael Jakupca