Patents by Inventor Charles S. Shanahan

Charles S. Shanahan 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: 10273425
    Abstract: A carrier fluid or fluidizer for use in fuel performance additives or fuels including such additives is described herein. The novel carrier fluids include a unique blend of alkoxylated alcohols or polyols providing unexpected performance improvements to fuel performance additives and fuels incorporating the additives. The carrier fluids, when combined with at least a detergent, provide desired valve stick performance and unexpectedly improve the intake valve deposit performance at the same time.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: April 30, 2019
    Assignee: Afton Chemical Corporation
    Inventors: Makaye Tabibi, Scott D. Schwab, Charles S. Shanahan, William J. Colucci
  • Publication number: 20180258361
    Abstract: A carrier fluid or fluidizer for use in fuel performance additives or fuels including such additives is described herein. The novel carrier fluids include a unique blend of alkoxylated alcohols or polyols providing unexpected performance improvements to fuel performance additives and fuels incorporating the additives. The carrier fluids, when combined with at least a detergent, provide desired valve stick performance and unexpectedly improve the intake valve deposit performance at the same time.
    Type: Application
    Filed: March 13, 2017
    Publication date: September 13, 2018
    Inventors: Makaye Tabibi, Scott D. Schwab, Charles S. Shanahan, William J. Colucci
  • Publication number: 20180223017
    Abstract: Polyisobutylenes (PIBs) containing a high proportion of vinylidene end groups are generally favored over conventional PIBs because of their higher reactivity in reactions that are needed to prepare fuel and lubricant additives. However, detergent additives that have been prepared from conventional PIBs actually perform better than detergent additives prepared from high reactive PIBs. Specifically, detergent additives that were prepared from conventional PIB that was then enriched with tri- and tetra-PIB resulted in altered thermal stability and improved detergency of the resulting compound as compared to the structures which were created using a high proportion of vinylidene end groups.
    Type: Application
    Filed: March 30, 2018
    Publication date: August 9, 2018
    Inventors: William Jay Colucci, Charles S. Shanahan, Michel Nuckols, Alice Diane Gauthier, John T. Loper
  • Publication number: 20170158785
    Abstract: Polyisobutylenes (PIBs) containing a high proportion of vinylidene end groups are generally favored over conventional PIBs because of their higher reactivity in reactions that are needed to prepare fuel and lubricant additives. However, detergent additives that have been prepared from conventional PIBs actually perform better than detergent additives prepared from high reactive PIBs. Specifically, detergent additives that were prepared from conventional PIB that was then enriched with tri- and tetra-PIB resulted in altered thermal stability and improved detergency of the resulting compound as compared to the structures which were created using a high proportion of vinylidene end groups.
    Type: Application
    Filed: December 7, 2015
    Publication date: June 8, 2017
    Applicant: Afton Chemical Corporation
    Inventors: William Jay Colucci, Charles S. Shanahan, Michel Nuckols, Alice Diane Gauthier, John T. Loper