Patents by Inventor David Koenigs

David Koenigs 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: 12606652
    Abstract: The present disclosure provides a process. In an embodiment, the process includes contacting, under polymerization conditions, one or more C6-C14 ?-olefin monomers with a bis-biphenylphenoxy catalyst. The process includes forming a polymer composed of one or more C6-C14 ?-olefin monomers, and having an absolute weight average molecular weight (Mw(abs)) greater than 1,300,000 g/mol and a Mw(abs)/Mn(abs) from 1.3 to 3.0.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: April 21, 2026
    Assignee: Dow Global Technologies LLC
    Inventors: David Koenigs, Sean W. Ewart, Troy E. Knight, Pritish M. Kamat, Lixin Sun, Roger L. Kuhlman
  • Patent number: 12516138
    Abstract: The present disclosure provides a process. In an embodiment, the process includes providing a purge stream containing octene monomer. The process includes contacting, under polymerization conditions, the purge stream with a bis-biphenylphenoxy catalyst, and forming an octene polymer having an absolute weight average molecular weight (Mw(Abs)) greater than 1,300,000 g/mol and a Mw(Abs)/Mn(Abs) from 1.3 to 3.0.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: January 6, 2026
    Assignee: Dow Global Technologies LLC
    Inventors: David Koenigs, Sean W. Ewart, Troy E. Knight
  • Patent number: 12480065
    Abstract: The present disclosure provides a drag reducing agent. In an embodiment, the drag reducing agent includes a polymer and a liquid carrier. The polymer is composed of one or more C6-C14 ?-olefin monomers. The polymer includes a residual amount of zirconium. The polymer has an absolute weight average molecular weight (Mw(Abs)) greater than 1,300,000 g/mol and a (Mw(Abs)/Mn(Abs) from 1.3 to 3.0.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: November 25, 2025
    Assignee: Dow Global Technologies LLC
    Inventors: David Koenigs, Sean W. Ewart, Troy E. Knight, Pritish M. Kamat, Lixin Sun, Roger L Kuhlman
  • Patent number: 12435015
    Abstract: A method for reducing fouling in an oligomerizing reactor that includes upgrading C2 to C4 hydrocarbons within the oligomerizing reactor in the presence of a fouling inhibitor having a particle size D50 of less than 100 ?m and forming linear alpha olefins and polymer during the oligomerizing, wherein the fouling inhibitor changes the morphology of the polymer.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: October 7, 2025
    Assignee: Dow Global Technologies LLC
    Inventors: David Koenigs, Sean W. Ewart
  • Publication number: 20250145748
    Abstract: Embodiments of the present disclosure are directed to methods for producing ethylene acid copolymer comprising: polymerizing via free-radical polymerization at a pressure of at least 1000 atmospheres (atm) an ethylene monomer and unsaturated carboxylic acid containing comonomer to produce the ethylene acid copolymer, wherein the ethylene monomer and unsaturated carboxylic acid containing comonomer are in a mixture comprising at least one saturated carboxylic acid cosolvent, and wherein the at least one saturated carboxylic acid cosolvent having a boiling point less than 237° C. at 1 atm pressure and is present in the mixture at an amount of 1 to 25 wt. %.
    Type: Application
    Filed: January 27, 2023
    Publication date: May 8, 2025
    Applicant: Dow Global Technologies LLC
    Inventors: Ivan A. Konstantinov, Christopher R. Eddy, Sean W. Ewart, Bruce M. Hasch, David Koenigs, Shannon Meerscheidt, Sarat Munjal
  • Patent number: 12252573
    Abstract: The polymerization process of this disclosure includes includes polymerizing ethylene and one or more olefins in the presence of a catalyst system under olefin polymerization conditions to form an ethylene-based polymer. The catalyst system comprising a metal-ligand complex according to formula (I).
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: March 18, 2025
    Assignee: Dow Global Technologies LLC
    Inventors: David Koenigs, David D. Devore, Brad C. Bailey, Endre Szuromi, Robert D. Grigg, David M. Pearson, Nolan T. McDougal, John B. Etienne, Sukrit Mukhopadhyay
  • Publication number: 20240352302
    Abstract: A drag reducing agent that includes a polymer composed of one or more C6-C14 ?-olefin monomers, which polymer comprises a residual amount of zirconium and has an absolute weight average molecular weight (Mw(Abs)) greater than 1,300,000 g/mol and a Mw(Abs)/Mn(Abs) from 1.3 to 3.0, and that includes a liquid carrier that includes at least water.
    Type: Application
    Filed: November 21, 2022
    Publication date: October 24, 2024
    Inventors: David Koenigs, Larisa Mae Q. Reyes, Edward K. Nyutu, Daniel L. Dermody, David L. Malotky, Pritish M. Kamat, George J. Frycek
  • Publication number: 20230159844
    Abstract: The present disclosure provides a drag reducing agent. In an embodiment, the drag reducing agent includes a polymer and a liquid carrier. The polymer is composed of one or more C6-C14 ?-olefin monomers. The polymer includes a residual amount of zirconium. The polymer has an absolute weight average molecular weight (Mw(Abs)) greater than 1,300,000 g/mol and a (Mw(Abs)/Mn(Abs) from 1.3 to 3.0.
    Type: Application
    Filed: March 26, 2021
    Publication date: May 25, 2023
    Inventors: David Koenigs, Sean W. Ewart, Troy E. Knight, Pritish M. Kamat, Lixin Sun, Roger L. Kuhlman
  • Publication number: 20230127996
    Abstract: The present disclosure provides a process. In an embodiment, the process includes contacting, under polymerization conditions, one or more C6-C14 ?-olefin monomers with a bis-biphenylphenoxy catalyst. The process includes forming a polymer composed of one or more C6-C14 ?-olefin monomers, and having an absolute weight average molecular weight (Mw(abs)) greater than 1,300,000 g/mol and a Mw(abs)/Mn(abs) from 1.3 to 3.0.
    Type: Application
    Filed: March 26, 2021
    Publication date: April 27, 2023
    Inventors: David Koenigs, Sean W. Ewart, Troy E. Knight, Pritish M. Kamat, Lixin Sun, Roger L. Kuhlman
  • Publication number: 20230125141
    Abstract: The present disclosure provides a process. In an embodiment, the process includes providing a purge stream containing octene monomer. The process includes contacting, under polymerization conditions, the purge stream with a bis-biphenylphenoxy catalyst, and forming an octene polymer having an absolute weight average molecular weight (Mw(Abs)) greater than 1,300,000 g/mol and a Mw(Abs)/Mn(Abs) from 1.3 to 3.0.
    Type: Application
    Filed: March 26, 2021
    Publication date: April 27, 2023
    Inventors: David Koenigs, Sean W. Ewart, Troy E. Knight
  • Publication number: 20220185745
    Abstract: A method for reducing fouling in an upgrading reactor that includes upgrading C2 to C4 hydrocarbons within the upgrading reactor in the presence of a fouling inhibitor having a particle size D50 of less than 100 ?m and forming linear alpha olefins and polymer during the upgrading, wherein the fouling inhibitor changes the morphology of the polymer.
    Type: Application
    Filed: July 7, 2020
    Publication date: June 16, 2022
    Inventors: David Koenigs, Sean W. Ewart
  • Publication number: 20220056164
    Abstract: The polymerization process of this disclosure includes includes polymerizing ethylene and one or more olefins in the presence of a catalyst system under olefin polymerization conditions to form an ethylene-based polymer.
    Type: Application
    Filed: December 20, 2019
    Publication date: February 24, 2022
    Applicant: Dow Global Technologies LLC
    Inventors: David Koenigs, David D. Devore, Brad C. Bailey, Endre Szuromi, Robert D. Grigg, David M. Pearson, Nolan T. McDougal, John B. Etienne, Sukrit Mukhopadhyay