Patents by Inventor Aaron M. Hollas

Aaron M. Hollas 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: 10454124
    Abstract: Embodiments of an aqueous electrolyte comprising a base and a phenazine derivative are disclosed. Redox flow batteries including the aqueous electrolyte are also disclosed.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: October 22, 2019
    Assignee: Battelle Memorial Institute
    Inventors: Xiaoliang Wei, Wei Wang, Aaron M. Hollas, Vincent L. Sprenkle, Zimin Nie, Bin Li
  • Publication number: 20180366757
    Abstract: Embodiments of an aqueous electrolyte comprising a base and a phenazine derivative are disclosed. Redox flow batteries including the aqueous electrolyte are also disclosed.
    Type: Application
    Filed: June 16, 2017
    Publication date: December 20, 2018
    Inventors: Xiaoliang Wei, Wei Wang, Aaron M. Hollas, Vincent L. Sprenkle, Zimin Nie, Bin Li
  • Patent number: 9611348
    Abstract: An ethylene copolymer, a Group 4 transition metal catalyst compound, and methods for polymerization using such a compound, said compound represented by the formula: (L)p(R?)zT(Cp)(A)MX2, where M is a Group 4 metal; z is 0 to 8; p is 1 to 3; X is an anionic leaving group; T is a bridging group; R1 to R4 are hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, aryl group, substituted aryl group, or a heteroatom-containing group (where adjacent R groups can form rings); R? is hydrogen, a C1 to C10 alkyl group, a C6 to C24 aryl group, or a C7 to C40 alkylaryl group; and L is a heteroatom or heteroatom-containing group bound to T, Cp is a cyclopentadienyl ring substituted with 0 to 4 substituent groups (where adjacent groups can form C4 to C20 rings); A is Cp or (JS?z*-1-y), where J is a Group 15 or 16 element; S? is a hydrocarbyl, substituted hydrocarbyl, or heteroatom; z* is 2 or 3, and y is 0 or 1, is provided.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: April 4, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Ian C. Stewart, Steven D. Brown, Crisita Carmen H. Atienza, David T. Harris, Aaron M. Hollas
  • Publication number: 20140316085
    Abstract: An ethylene copolymer, a Group 4 transition metal catalyst compound, and methods for polymerization using such a compound, said compound represented by the formula: (L)p(R?)zT(Cp)(A)MX2, where M is a Group 4 metal; z is 0 to 8; p is 1 to 3; X is an anionic leaving group; T is a bridging group; R1 to R4 are hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, aryl group, substituted aryl group, or a heteroatom-containing group (where adjacent R groups can form rings); R? is hydrogen, a C1 to C10 alkyl group, a C6 to C24 aryl group, or a C7 to C40 alkylaryl group; and L is a heteroatom or heteroatom-containing group bound to T, Cp is a cyclopentadienyl ring substituted with 0 to 4 substituent groups (where adjacent groups can form C4 to C20 rings); A is Cp or (JS?z*-1-y), where J is a Group 15 or 16 element; S? is a hydrocarbyl, substituted hydrocarbyl, or heteroatom; z* is 2 or 3, and y is 0 or 1, is provided.
    Type: Application
    Filed: April 9, 2014
    Publication date: October 23, 2014
    Inventors: Ian C. Stewart, Steven D. Brown, Crisita Carmen H. Atienza, David T. Harris, Aaron M. Hollas