Patents by Inventor David K. Steelman

David K. Steelman 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).

  • Polyether Polymerization Process
    Publication number: 20230356207
    Abstract: Embodiments relate to a method of producing a modified double metal cyanide complex, a method of producing a monol or polyol that includes providing the modified double metal cyanide complex, an alkylene oxide polymerization process that includes providing the modified double metal cyanide complex, a batch, semi-batch, or continuous manufacturing process that includes providing the modified double metal cyanide complex, and a polyether polyol prepared using the batch, semi-batch, or continuous manufacturing process that includes providing the modified double metal cyanide complex.
    Type: Application
    Filed: July 17, 2023
    Publication date: November 9, 2023
    Inventors: David K. Steelman, David A. Babb, Joost Depicker, Jasmijn Kuijper, Mari S. Rosen
  • Polyether polymerization process
    Patent number: 11745174
    Abstract: Embodiments relate to a method of producing a modified double metal cyanide complex, a method of producing a monol or polyol that includes providing the modified double metal cyanide complex, an alkylene oxide polymerization process that includes providing the modified double metal cyanide complex, a batch, semi-batch, or continuous manufacturing process that includes providing the modified double metal cyanide complex, and a polyether polyol prepared using the batch, semi-batch, or continuous manufacturing process that includes providing the modified double metal cyanide complex.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: September 5, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: David K. Steelman, David A. Babb, Joost Depicker, Jasmijn Kuijper, Mari S. Rosen
  • Catalyst complex
    Patent number: 11571690
    Abstract: Embodiments relate to a method of producing a modified double metal cyanide complex, a method of producing a monol or polyol that includes providing the modified double metal cyanide complex, an alkylene oxide polymerization process that includes providing the modified double metal cyanide complex, a batch, semi-batch, or continuous manufacturing process that includes providing the modified double metal cyanide complex, and a polyether polyol prepared using the batch, semi-batch, or continuous manufacturing process that includes providing the modified double metal cyanide complex.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: February 7, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: David K. Steelman, David A. Babb, Joost Depicker, Jasmijn Kuijper, Mari S. Rosen
  • Polyether Polymerization Process
    Publication number: 20210198425
    Abstract: Embodiments relate to a method of producing a modified double metal cyanide complex, a method of producing a monol or polyol that includes providing the modified double metal cyanide complex, an alkylene oxide polymerization process that includes providing the modified double metal cyanide complex, a batch, semi-batch, or continuous manufacturing process that includes providing the modified double metal cyanide complex, and a polyether polyol prepared using the batch, semi-batch, or continuous manufacturing process that includes providing the modified double metal cyanide complex.
    Type: Application
    Filed: May 10, 2018
    Publication date: July 1, 2021
    Inventors: David K. Steelman, David A. Babb, Joost Depicker, Jasmijn Kuijper, Mari S. Rosen
  • Catalyst Complex
    Publication number: 20210154656
    Abstract: Embodiments relate to a method of producing a modified double metal cyanide complex, a method of producing a monol or polyol that includes providing the modified double metal cyanide complex, an alkylene oxide polymerization process that includes providing the modified double metal cyanide complex, a batch, semi-batch, or continuous manufacturing process that includes providing the modified double metal cyanide complex, and a polyether polyol prepared using the batch, semi-batch, or continuous manufacturing process that includes providing the modified double metal cyanide complex.
    Type: Application
    Filed: May 10, 2018
    Publication date: May 27, 2021
    Inventors: David K. Steelman, David A. Babb, Joost Depicker, Jasmijn Kuijper, Mari S. Rosen