Patents by Inventor Todd M. Dvorak

Todd M. Dvorak 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: 8977421
    Abstract: A system, a method and a computer program to determine the usability of a lubricant such as, e.g., engine oil, and when to replace the lubricant in a particular engine. The system, method, and computer program are further configured to generate a lubricant discard interval for each engine in, e.g., a company's fleet of vehicles. The system, method, and computer program are configured to generate lubricant discard interval schedule for each of the vehicles in the company's fleet based on the lubricant discard intervals.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: March 10, 2015
    Assignee: Afton Chemical Corporation
    Inventors: Todd M. Dvorak, Robert T. Dittmeier, Dewey P. Szemenyei
  • Patent number: 8965625
    Abstract: A system, a method and a computer program to predict a portion of used lubricant in an engine that is to be drained and replaced by fresh lubricant based on an analysis parameter value that is measured in a sample of used engine lubricant from the engine. The system includes a first input that receives the analysis parameter value from the used lubricant and stores the analysis parameter value in a memory of a processor. A second input receives an analysis parameter threshold value for the used lubricant at the end of a service interval and stores the analysis parameter threshold value in a memory of the processor. A determiner predicts a future analysis parameter value of the used lubricant at the end of the service interval based on the analysis parameter value, and the analysis parameter threshold value.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: February 24, 2015
    Assignee: Afton Chemical Corporation
    Inventors: Todd M. Dvorak, Robert T. Dittmeier, Dewey P. Szemenyei
  • Publication number: 20140365144
    Abstract: A system, a method and a computer program to predict a portion of used lubricant in an engine that is to be drained and replaced by fresh lubricant based on an analysis parameter value that is measured in a sample of used engine lubricant from the engine. The system includes a first input that receives the analysis parameter value from the used lubricant and stores the analysis parameter value in a memory of a processor. A second input receives an analysis parameter threshold value for the used lubricant at the end of a service interval and stores the analysis parameter threshold value in a memory of the processor. A determiner predicts a future analysis parameter value of the used lubricant at the end of the service interval based on the analysis parameter value, and the analysis parameter threshold value.
    Type: Application
    Filed: July 31, 2014
    Publication date: December 11, 2014
    Inventors: Todd M. DVORAK, Robert T. DITTMEIER, Dewey P. SZEMENYEI
  • Publication number: 20140343786
    Abstract: A system, a method and a computer program to determine the usability of a lubricant such as, e.g., engine oil, and when to replace the lubricant in a particular engine. The system, method, and computer program are further configured to generate a lubricant discard interval for each engine in, e.g., a company's fleet of vehicles. The system, method, and computer program are configured to generate lubricant discard interval schedule for each of the vehicles in the company's fleet based on the lubricant discard intervals.
    Type: Application
    Filed: July 31, 2014
    Publication date: November 20, 2014
    Inventors: Todd M. DVORAK, Robert T. DITTMEIER, Dewey P. SZEMENYEI
  • Patent number: 8709985
    Abstract: There is disclosed a lubricant composition comprising a base oil comprising a reduced total amount of cyclobenzene as compared to another base oil. Methods of using the lubricant composition for preventing and/or reducing the deposit formation in an engine are also disclosed.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: April 29, 2014
    Assignee: Afton Chemical Corporation
    Inventors: Mark T. Devlin, John T. Loper, Roger M. Sheets, Todd M. Dvorak
  • Publication number: 20130197830
    Abstract: A system, a method and a computer program to determine the usability of a lubricant such as, e.g., engine oil, and when to replace the lubricant in a particular engine. The system, method, and computer program are further configured to generate a lubricant discard interval for each engine in, e.g., a company's fleet of vehicles. The system, method, and computer program are configured to generate lubricant discard interval schedule for each of the vehicles in the company's fleet based on the lubricant discard intervals.
    Type: Application
    Filed: February 1, 2012
    Publication date: August 1, 2013
    Applicant: AFTON CHEMICAL CORPORATION
    Inventors: Todd M. Dvorak, Robert T. Dittmeier, Dewey P. Szemenyei
  • Publication number: 20130197738
    Abstract: A system, a method and a computer program to predict a portion of used lubricant in an engine that is to be drained and replaced by fresh lubricant based on an analysis parameter value that is measured in a sample of used engine lubricant from the engine. The system includes a first input that receives the analysis parameter value from the used lubricant and stores the analysis parameter value in a memory of a processor. A second input receives an analysis parameter threshold value for the used lubricant at the end of a service interval and stores the analysis parameter threshold value in a memory of the processor. A determiner predicts a future analysis parameter value of a mixture of used and fresh lubricant at the end of the service interval based on the analysis parameter value, and the analysis parameter threshold value.
    Type: Application
    Filed: April 4, 2012
    Publication date: August 1, 2013
    Applicant: AFTON CHEMICAL CORPORATION
    Inventors: Todd M. Dvorak, Robert T. Dittmeier, Dewey P. Szemenyei
  • Publication number: 20080119376
    Abstract: There is disclosed a lubricant composition comprising a base oil comprising a reduced total amount of cyclobenzene as compared to another base oil. Methods of using the lubricant composition for preventing and/or reducing the deposit formation in an engine are also disclosed.
    Type: Application
    Filed: November 17, 2006
    Publication date: May 22, 2008
    Inventors: Mark T. Devlin, John T. Loper, Roger M. Sheets, Todd M. Dvorak