Patents by Inventor Curtis Campbell

Curtis Campbell 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).

  • Publication number: 20230073826
    Abstract: A seating structure includes a base, a seat supported by the base, and a backrest having a frame and a suspension material supported by the frame. The frame includes an upper end and a lower end opposite the upper end. The seating structure also includes an upper thoracic support assembly supported by the frame adjacent the upper end. The upper thoracic support assembly including a thoracic support pad positioned between the frame and the suspension material. The thoracic support pad configured to engage the suspension material to support an upper thoracic region of a user.
    Type: Application
    Filed: September 8, 2022
    Publication date: March 9, 2023
    Inventors: Joel Graham Van Faasen, Jim D. Slagh, Lauren Mary LaLonde, Jonathan Curtis Campbell, John F. Aldrich, Timothy Allen Hoogland, Robert W. Roth, Brock M. Walker
  • Patent number: 9249091
    Abstract: Disclosed herein is a post-treated salt of a sulfurized alkyl-substituted hydroxyaromatic composition which is a reaction product of (a) a salt of a sulfurized alkyl-substituted hydroxyaromatic composition, wherein the alkyl-substituted hydroxyaromatic compound is derived from alkylation of a hydroxyaromatic compound with one or more olefins comprising C9 to C18 oligomers of monomers selected from propylene, butylene or mixtures thereof, (b) a source of an aldehyde and (c) a primary and/or secondary monoamine compound having at least one active hydrogen. The post-treated salt of a sulfurized alkylhydroxyaromatic composition disclosed herein has a reduced content of unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt as compared to the content, by combined mass, of the unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt present in the non-post-treated salt of a sulfurized alkyl-substituted hydroxyaromatic composition.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: February 2, 2016
    Assignee: Chevron Oronite Company LLC
    Inventors: Andrew R. Gibbs, Curtis Campbell
  • Patent number: 8772209
    Abstract: Disclosed herein is a process for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition having a reduced content of unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: July 8, 2014
    Assignee: Chevron Oronite Company LLS
    Inventors: Cedrick Mahieux, Richard Dutta, Curtis Campbell
  • Publication number: 20140142347
    Abstract: Disclosed herein is a process for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition having a reduced content of unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt.
    Type: Application
    Filed: November 20, 2012
    Publication date: May 22, 2014
    Applicant: Chevron Oronite Company LLC
    Inventors: Cedrick Mahieux, Richard Dutta, Curtis Campbell
  • Publication number: 20130165359
    Abstract: Disclosed herein is a post-treated salt of a sulfurized alkyl-substituted hydroxyaromatic composition which is a reaction product of (a) a salt of a sulfurized alkyl-substituted hydroxyaromatic composition, wherein the alkyl-substituted hydroxyaromatic compound is derived from alkylation of a hydroxyaromatic compound with one or more olefins comprising C9 to C18 oligomers of monomers selected from propylene, butylene or mixtures thereof, (b) a source of an aldehyde and (c) a primary and/or secondary monoamine compound having at least one active hydrogen. The post-treated salt of a sulfurized alkylhydroxyaromatic composition disclosed herein has a reduced content of unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt as compared to the content, by combined mass, of the unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt present in the non-post-treated salt of a sulfurized alkyl-substituted hydroxyaromatic composition.
    Type: Application
    Filed: December 27, 2012
    Publication date: June 27, 2013
    Applicant: Chevron Oronite Company LLC
    Inventors: Andrew R. Gibbs, Curtis Campbell
  • Publication number: 20070049508
    Abstract: Disclosed is a lubricating oil composition displaying reduced endocrine disruption response, comprising a major amount of an oil of lubricating viscosity; and a detergent comprising an unsulfurized alkali or alkaline earth metal salt of a reaction product of (1) an olefin having at least 10 carbon atoms, wherein greater than 80 mole % of the olefin is a linear C20-C30 n-alpha olefin, wherein less than 10 mole % of the olefin is a linear olefin of less than 20 carbon atoms, and wherein less than 5 mole % of the olefin is branched chain olefin of 18 carbons or less, and (2) a hydroxyaromatic compound.
    Type: Application
    Filed: September 1, 2005
    Publication date: March 1, 2007
    Inventors: Peter Stonebraker, Curtis Campbell, Linda Roberts
  • Publication number: 20070027057
    Abstract: A process for preparing alkylhydroxybenzoate detergent-dispersant additives having low sulfur content and high TBN is described. The alkali metal alkylhydroxylbenzoate, alkaline earth metal alkylhydroxybenzoate and overbased alkaline earth metal alkylhydroxybenzoate reaction products described have a sulfur content in the range of from about 0.1 to 1.2 wt % are effective anti-corrosive detergent-dispersant additives in lubricating oil compositions.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 1, 2007
    Inventors: Jean-Louis Le Coent, Jeffrey Toman, Curtis Campbell
  • Publication number: 20050059560
    Abstract: An improved process for making stabilized polyalkenyl sulfonic acids, whereby the product resulting from the reaction between a polyalkene and sulfur trioxide is stabilized by neutralizing with a neutralizing agent prior to storage or further processing. Neutralization at this point in the process results in polyalkenyl sulfonic acid that is stable and has a decreased amount of sultones.
    Type: Application
    Filed: September 12, 2003
    Publication date: March 17, 2005
    Inventors: Jesse Meyer, Richard Nelson, William King, James Harrison, Curtis Campbell, Eugene Spala