Patents by Inventor Linda Lee Crump

Linda Lee Crump 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).

  • Silica adsorbent on magnetic substrate
    Patent number: 6924033
    Abstract: Adsorbent particles comprising superparamagnetic and/or low Curie Temperature transition metal-containing cores surrounded by a hydrous siliceous oxide coating can be formed by an aqueous process wherein the core is precipitated from an aqueous solution and a siliceous oxide coating is deposited thereon while complete drying of the core is avoided until after the siliceous oxide is deposited. The resulting siliceous adsorbents exhibit strong superparamagnetic and/or low Curie temperature magnetic properties with low transition metal leachability.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: August 2, 2005
    Assignee: W.R. Grace & Co. -Conn.
    Inventors: James Neil Pryor, Linda Lee Crump
  • Silica adsorbent on magnetic substrate
    Publication number: 20040043216
    Abstract: Adsorbent particles comprising superparamagnetic and/or low Curie Temperature transition metal-containing cores surrounded by a hydrous siliceous oxide coating can be formed by an aqueous process wherein the core is precipitated from an aqueous solution and a siliceous oxide coating is deposited thereon while complete drying of the core is avoided until after the siliceous oxide is deposited. The resulting siliceous adsorbents exhibit strong superparamagnetic and/or low Curie temperature magnetic properties with low transition metal leachability.
    Type: Application
    Filed: July 9, 2003
    Publication date: March 4, 2004
    Applicant: W. R. Grace & Co.-Conn.
    Inventors: James Neil Pryor, Linda Lee Crump
  • Method for adsorbing substances using silica adsorbent on magnetic substrate
    Patent number: 6607667
    Abstract: Method for Absorbing substances wherein adsorbent particles comprising superparamagnetic and/or low Curie Temperature transition metal-containing cores surrounded by a hydrous siliceous oxide coating can be formed by an aqueous process wherein the core is precipitated from an aqueous solution and a siliceous oxide coating is deposited thereon while complete drying of the core is avoided until after the siliceous oxide is deposited. The resulting siliceous adsorbents exhibit strong superparamagnetic and/or low Curie temperature magnetic properties with low transition metal leachability.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: August 19, 2003
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: James Neil Pryor, Linda Lee Crump
  • Silica adsorbent on magnetic substrate
    Publication number: 20030031783
    Abstract: Adsorbent particles comprising superparamagnetic and/or low Curie Temperature transition metal-containing cores surrounded by a hydrous siliceous oxide coating can be formed by an aqueous process wherein the core is precipitated from an aqueous solution and a siliceous oxide coating is deposited thereon while complete drying of the core is avoided until after the siliceous oxide is deposited. The resulting siliceous adsorbents exhibit strong superparamagnetic and/or low Curie temperature magnetic properties with low transition metal leachability.
    Type: Application
    Filed: September 4, 2002
    Publication date: February 13, 2003
    Applicant: W.R. Grace & Co.-Conn.
    Inventors: James Neil Pryor, Linda Lee Crump
  • Silica adsorbent on magnetic substrate
    Patent number: 6447911
    Abstract: Adsorbent particles comprising superparamagnetic and/or low Curie Temperature transition metal-containing cores surrounded by a hydrous siliceous oxide coating can be formed by an aqueous process wherein the core is precipitated from an aqueous solution and a siliceous oxide coating is deposited thereon while complete drying of the core is avoided until after the siliceous oxide is deposited. The resulting siliceous adsorbents exhibit strong superparamagnetic and/or low Curie temperature magnetic properties with low transition metal leachability.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: September 10, 2002
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: James Neil Pryor, Linda Lee Crump
  • Silica adsorbent on magnetic substrate
    Patent number: 6296937
    Abstract: Adsorbent particles comprising superparamagnetic and/or low Curie Temperature transition metal-containing cores surrounded by a hydrous siliceous oxide coating can be formed by an aqueous process wherein the core is precipitated from an aqueous solution and a siliceous oxide coating is deposited thereon while complete drying of the core is avoided until after the siliceous oxide is deposited. The resulting siliceous adsorbents exhibit strong superparamagnetic and/or low Curie temperature magnetic properties with low transition metal leachability.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: October 2, 2001
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: James Neil Pryor, Linda Lee Crump
  • Silica adsorbent on magnetic substrate
    Publication number: 20010007713
    Abstract: Adsorbent particles comprising superparamagnetic and/or low Curie Temperature transition metal-containing cores surrounded by a hydrous siliceous oxide coating can be formed by an aqueous process wherein the core is precipitated from an aqueous solution and a siliceous oxide coating is deposited thereon while complete drying of the core is avoided until after the siliceous oxide is deposited. The resulting siliceous adsorbents exhibit strong superparamagnetic and/or low Curie temperature magnetic properties with low transition metal leachability.
    Type: Application
    Filed: January 8, 2001
    Publication date: July 12, 2001
    Inventors: James Neil Pryor, Linda Lee Crump