Patents by Inventor Brendan Patrick Dowd

Brendan Patrick Dowd 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: 10786807
    Abstract: Disclosed in certain embodiments are ZSM-5 zeolite microspheres. The ZSM-5 zeolite microspheres may contain substantially no clay or calcined clay material. The ZSM-5 zeolite microspheres may have a ZSM-5 zeolite content of at least 70 wt. %. Disclosed in certain embodiments is a method of forming ZSM-5 zeolite microspheres including treating microspheres with at least one alkali solution.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: September 29, 2020
    Assignee: BASF Corporation
    Inventors: Xingtao Gao, Christopher R. Castellano, Brendan Patrick Dowd
  • Patent number: 10335777
    Abstract: Disclosed in certain embodiments are ZSM-5 zeolite microspheres. Disclosed in certain embodiments is a method of forming ZSM-5 zeolite microspheres including: 1) shaping a mixture into microspheres where the mixture includes a silica material and of particulates selected from at least one high-density material with an absolute bulk density of at least 0.3 g/cc, ZSM-5 zeolite crystals, and combinations thereof; 2) calcining the microspheres; and 3) reacting and subsequently heating the microspheres with at least one alkali solution to form ZSM-5 zeolite in-situ on the microspheres, where the ZSM-5 zeolite microspheres contain substantially no clay or calcined clay material.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: July 2, 2019
    Assignee: BASF Corporation
    Inventors: Xingtao Gao, Christopher R. Castellano, Brendan Patrick Dowd
  • Publication number: 20190151831
    Abstract: Disclosed in certain embodiments are ZSM-5 zeolite microspheres. Disclosed in certain embodiments is a method of forming ZSM-5 zeolite microspheres including: 1) shaping a mixture into microspheres where the mixture includes a silica material and of particulates selected from at least one high-density material with an absolute bulk density of at least 0.3 g/cc, ZSM-5 zeolite crystals, and combinations thereof; 2) calcining the microspheres; and 3) reacting and subsequently heating the microspheres with at least one alkali solution to form ZSM-5 zeolite in-situ on the microspheres, where the ZSM-5 zeolite microspheres contain substantially no clay or calcined clay material.
    Type: Application
    Filed: January 17, 2019
    Publication date: May 23, 2019
    Inventors: Xingtao Gao, Christopher R. Castellano, Brendan Patrick Dowd
  • Patent number: 10213774
    Abstract: Disclosed in certain embodiments are ZSM-5 zeolite microspheres. Disclosed in certain embodiments is a method of forming ZSM-5 zeolite microspheres including: 1) shaping a mixture into microspheres where the mixture includes a silica material and of particulates selected from at least one high-density material with an absolute bulk density of at least 0.3 g/cc, ZSM-5 zeolite crystals, and combinations thereof; 2) calcining the microspheres; and 3) reacting and subsequently heating the microspheres with at least one alkali solution to form ZSM-5 zeolite in-situ on the microspheres, where the ZSM-5 zeolite microspheres contain substantially no clay or calcined clay material.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: February 26, 2019
    Assignee: BASF Corporation
    Inventors: Xingtao Gao, Christopher R. Castellano, Brendan Patrick Dowd
  • Publication number: 20180071723
    Abstract: Disclosed in certain embodiments are ZSM-5 zeolite microspheres. Disclosed in certain embodiments is a method of forming ZSM-5 zeolite microspheres including: 1) shaping a mixture into microspheres where the mixture includes a silica material and of particulates selected from at least one high-density material with an absolute bulk density of at least 0.3 g/cc, ZSM-5 zeolite crystals, and combinations thereof; 2) calcining the microspheres; and 3) reacting and subsequently heating the microspheres with at least one alkali solution to form ZSM-5 zeolite in-situ on the microspheres, where the ZSM-5 zeolite microspheres contain substantially no clay or calcined clay material.
    Type: Application
    Filed: April 8, 2016
    Publication date: March 15, 2018
    Inventors: Xingtao Gao, Christopher R. Castellano, Brendan Patrick Dowd