Patents by Inventor Lisa Spendlove Liu

Lisa Spendlove Liu 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).

  • Non-toxic percussion primers and methods of preparing the same
    Patent number: 8454770
    Abstract: A percussion primer composition including at least one explosive, at least one nano-coated fuel particle having natural surface oxides thereon, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: June 4, 2013
    Assignee: Alliant Techsystems Inc.
    Inventors: Jack Erickson, Joel L. Sandstrom, Gene Johnston, Neal Norris, Patrick Braun, Reed Blau, Lisa Spendlove Liu
  • Non-toxic percussion primers and methods of preparing the same
    Patent number: 8454769
    Abstract: A percussion primer composition including at least one explosive, at least fuel particle having a particle size of about 1500 nm or less, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: June 4, 2013
    Assignee: Alliant Techsystems Inc.
    Inventors: Jack Erickson, Joel L. Sandstrom, Gene Johnston, Neal Norris, Patrick Braun, Reed Blau, Lisa Spendlove Liu, Rachel Hendrika Newell
  • NON-TOXIC PERCUSSION PRIMERS AND METHODS OF PREPARING THE SAME
    Publication number: 20130118658
    Abstract: A percussion primer composition including at least one explosive, at least one nano-coated fuel particle having natural surface oxides thereon, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.
    Type: Application
    Filed: May 16, 2012
    Publication date: May 16, 2013
    Inventors: Jack Erickson, Joel Sandstrom, Gene Johnston, Neal Norris, Patrick Braun, Reed Blau, Lisa Spendlove Liu
  • NON-TOXIC PERCUSSION PRIMERS AND METHODS OF PREPARING THE SAME
    Publication number: 20120227874
    Abstract: A percussion primer composition including at least one explosive, at least fuel particle having a particle size of about 1500 nm or less, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.
    Type: Application
    Filed: April 26, 2012
    Publication date: September 13, 2012
    Inventors: Jack Erickson, Joel Lee Sandstrom, Gene Johnston, Neal Norris, Patrick Braun, Reed Blau, Lisa Spendlove Liu, Rachel Hendrika Newell
  • Non-toxic percussion primers and methods of preparing the same
    Patent number: 8202377
    Abstract: A percussion primer composition including at least one explosive, at least one nano-size non-coated fuel particle having natural surface oxides thereon, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: June 19, 2012
    Assignee: Alliant Techsystems Inc.
    Inventors: Jack Erickson, Joel Sandstrom, Gene Johnston, Neal Norris, Patrick Braun, Reed Blau, Lisa Spendlove Liu
  • Non-toxic percussion primers and methods of preparing the same
    Patent number: 8192568
    Abstract: A percussion primer composition including at least one explosive, at least fuel particle having a particle size of about 1500 nm or less, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: June 5, 2012
    Assignee: Alliant Techsystems Inc.
    Inventors: Jack Erickson, Joel Lee Sandstrom, Gene Johnston, Neal Norris, Patrick Braun, Reed Blau, Lisa Spendlove Liu, Rachel Hendrika Newell
  • Non-toxic percussion primers and methods of preparing the same
    Publication number: 20110000390
    Abstract: A percussion primer composition including at least one explosive, at least one nano-size non-coated fuel particle having natural surface oxides thereon, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.
    Type: Application
    Filed: February 9, 2007
    Publication date: January 6, 2011
    Applicant: Alliant Techsystems Inc.
    Inventors: Jack Erickson, Joel Sandstrom, Gene Johnston, Neal Norris, Patrick Braun, Reed Blau, Lisa Spendlove Liu
  • NON-TOXIC PERCUSSION PRIMERS AND METHODS OF PREPARING THE SAME
    Publication number: 20080245252
    Abstract: A percussion primer composition including at least one explosive, at least fuel particle having a particle size of about 1500 nm or less, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.
    Type: Application
    Filed: February 11, 2008
    Publication date: October 9, 2008
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Jack Erickson, Joel Lee Sandstrom, Gene Johnston, Neal Norris, Patrick Braun, Reed Blau, Lisa Spendlove Liu, Rachel Hendrika Newell