Patents by Inventor Stephen P. Velarde

Stephen P. Velarde 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).

  • Publication number: 20210253492
    Abstract: A method of producing DEMN eutectic comprises reacting a reactant mixture comprising ethylenediamine and diethylenetriamine with aqueous nitric acid to form a reaction mixture comprising diethylentriamine trinitrate and ethylenediamine dinitrate. The reaction mixture is combined with methylnitroguanidine and nitroguanidine to form an aqueous slurry. Water is removed from the aqueous slurry. A method of producing an energetic composition, and a system for producing DEMN eutectic are also described.
    Type: Application
    Filed: November 2, 2020
    Publication date: August 19, 2021
    Inventors: Stephen P. Velarde, Harold E. Johnston
  • Patent number: 10836687
    Abstract: A method of producing DEMN eutectic comprises reacting a reactant mixture comprising ethylenediamine and diethylenetriamine with aqueous nitric acid to form a reaction mixture comprising diethylentriamine trinitrate and ethylenediamine dinitrate. The reaction mixture is combined with methylnitroguanidine and nitroguanidine to form an aqueous slurry. Water is removed from the aqueous slurry. A method of producing an energetic composition, and a system for producing DEMN eutectic are also described.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: November 17, 2020
    Assignee: Northrop Grumman Innovation Systems, Inc.
    Inventors: Stephen P. Velarde, Harold E Johnston
  • Publication number: 20170233307
    Abstract: A method of producing DEMN eutectic comprises reacting a reactant mixture comprising ethylenediamine and diethylenetriamine with aqueous nitric acid to form a reaction mixture comprising diethylentriamine trinitrate and ethylenediamine dinitrate. The reaction mixture is combined with methylnitroguanidine and nitroguanidine to form an aqueous slurry. Water is removed from the aqueous slurry. A method of producing an energetic composition, and a system for producing DEMN eutectic are also described.
    Type: Application
    Filed: May 1, 2017
    Publication date: August 17, 2017
    Inventors: Stephen P. Velarde, Harold E. Johnston
  • Patent number: 9650307
    Abstract: A method of producing DEMN eutectic comprises reacting a reactant mixture comprising ethylenediamine and diethylenetriamine with aqueous nitric acid to form a reaction mixture comprising diethylentriamine trinitrate and ethylenediamine dinitrate. The reaction mixture is combined with methylnitroguanidine and nitroguanidine to form an aqueous slurry. Water is removed from the aqueous slurry. A method of producing an energetic composition, and a system for producing DEMN eutectic are also described.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 16, 2017
    Assignee: Orbital ATK, Inc.
    Inventors: Stephen P. Velarde, Harold E. Johnston
  • Patent number: 9133150
    Abstract: The present invention provides O-nitro compounds, pharmaceutical compositions of O-nitro compounds and methods of using O-nitro compounds and/or pharmaceutical compositions thereof to treat or prevent diseases or disorders characterized by abnormal cell proliferation, such as cancer, inflammation, cardiovascular disease and autoimmune disease.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: September 15, 2015
    Assignee: ORBITAL ATK, INC.
    Inventors: Mark D. Bednarski, Susan Knox, Louis F. Cannizzo, Kirstin F. Warner, Robert B. Wardle, Stephen P. Velarde, Shoucheng Ning
  • Publication number: 20130309324
    Abstract: The present invention provides O-nitro compounds, pharmaceutical compositions of O-nitro compounds and methods of using O-nitro compounds and/or pharmaceutical compositions thereof to treat or prevent diseases or disorders characterized by abnormal cell proliferation, such as cancer, inflammation, cardiovascular disease and autoimmune disease.
    Type: Application
    Filed: July 26, 2013
    Publication date: November 21, 2013
    Applicants: RadioRx, Inc., c/o Interwest Venture Partners, Alliant Techsystems Inc.
    Inventors: Mark D. Bednarski, Susan Knox, Louis F. Cannizzo, Kristin F. Warner, Robert B. Wardle, Stephen P. Velarde, Shoucheng Ning
  • Patent number: 8530681
    Abstract: The present invention provides O-nitro compounds, pharmaceutical compositions of O-nitro compounds and methods of using O-nitro compounds and/or pharmaceutical compositions thereof to treat or prevent diseases or disorders characterized by abnormal cell proliferation, such as cancer, inflammation, cardiovascular disease and autoimmune disease.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: September 10, 2013
    Assignee: Alliant Techsystems Inc.
    Inventors: Susan Knox, Louis F. Cannizzo, Kirstin F. Warner, Robert B. Wardle, Stephen P. Velarde, Shoucheng Ning, Lynn M. Oehler
  • Patent number: 8367877
    Abstract: Methods of purifying BT are disclosed. The method comprises adding at least one polyhydroxyl compound to a crude BT mixture comprising BT and at least one boron-containing compound to form a polyhydroxyl compound/BT mixture. In one embodiment, the polyhydroxyl compound/BT mixture is then heated to a temperature greater than the boiling point of BT but less than the boiling point of the at least one polyhydroxyl compound. In another embodiment, the polyhydroxyl compound/BT mixture is heated to a temperature greater than the melting point of the at least one polyhydroxyl compound, and then to a temperature greater than the boiling point of BT but less than the boiling point of the at least one polyhydroxyl compound. A composition comprising BT is also disclosed.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: February 5, 2013
    Assignee: Alliant Techsystems Inc.
    Inventors: Stephen P. Velarde, Andrew J. Sanderson
  • Patent number: 8178698
    Abstract: The present invention provides cyclic nitro compounds, pharmaceutical compositions of cyclic nitro compounds and methods of using cyclic nitro compounds and/or pharmaceutical compositions thereof to treat or prevent diseases or disorders characterized by abnormal cell proliferation, such as cancer, inflammation, cardiovascular disease and autoimmune disease.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: May 15, 2012
    Assignee: Alliant Techsystems Inc.
    Inventors: Louis F. Cannizzo, Kirstin F. Warner, Robert B. Wardle, Stephen P. Velarde
  • Patent number: 8030521
    Abstract: Methods of producing TATB are disclosed. The method comprises providing acid wet TNPG and distilling water from the acid wet TNPG. The TNPG is reacted with an alkoxylating agent to form a solution of 1,3,5-trialkoxy-2,4,6-trinitrobenzene solution, which is reacted with an aminating agent. An alternate method comprises nitrating phloroglucinol in a first vessel to produce TNPG, which is reacted with an alkoxylating agent in a second vessel to form a solution comprising 1,3,5-trialkoxy-2,4,6-trinitrobenzene and at least one of at least one volatile byproduct and at least one nonvolatile byproduct. The at least one of at least one volatile byproduct and at least one nonvolatile byproduct is removed in situ. The 1,3,5-trialkoxy-2,4,6-trinitrobenzene is reacted with an aminating agent.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: October 4, 2011
    Assignee: Alliant Techsystems Inc.
    Inventors: Stephen P. Velarde, Vincent E. Mancini
  • Publication number: 20110172463
    Abstract: Methods of producing TATB are disclosed. The method comprises providing acid wet TNPG and distilling water from the acid wet TNPG. The TNPG is reacted with an alkoxylating agent to form a solution of 1,3,5-trialkoxy-2,4,6-trinitrobenzene solution, which is reacted with an aminating agent. An alternate method comprises nitrating phloroglucinol in a first vessel to produce TNPG, which is reacted with an alkoxylating agent in a second vessel to form a solution comprising 1,3,5-trialkoxy-2,4,6-trinitrobenzene and at least one of at least one volatile byproduct and at least one nonvolatile byproduct. The at least one of at least one volatile byproduct and at least one nonvolatile byproduct is removed in situ. The 1,3,5-trialkoxy-2,4,6-trinitrobenzene is reacted with an aminating agent.
    Type: Application
    Filed: May 7, 2007
    Publication date: July 14, 2011
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Stephen P. Velarde, Vincent E. Mancini
  • Publication number: 20110130572
    Abstract: The present invention provides cyclic nitro compounds, pharmaceutical compositions of cyclic nitro compounds and methods of using cyclic nitro compounds and/or pharmaceutical compositions thereof to treat or prevent diseases or disorders characterized by abnormal cell proliferation, such as cancer, inflammation, cardiovascular disease and autoimmune disease.
    Type: Application
    Filed: May 26, 2010
    Publication date: June 2, 2011
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Louis F. Cannizzo, Kirstin F. Warner, Robert B. Wardle, Stephen P. Velarde
  • Publication number: 20110118511
    Abstract: Methods of purifying BT are disclosed. The method comprises adding at least one polyhydroxyl compound to a crude BT mixture comprising BT and at least one boron-containing compound to form a polyhydroxyl compound/BT mixture. In one embodiment, the polyhydroxyl compound/BT mixture is then heated to a temperature greater than the boiling point of BT but less than the boiling point of the at least one polyhydroxyl compound. In another embodiment, the polyhydroxyl compound/BT mixture is heated to a temperature greater than the melting point of the polyhydroxyl compound, and then to a temperature greater than the boiling point of BT but less than the boiling point of the at least one polyhydroxyl compound. A composition comprising BT is also disclosed.
    Type: Application
    Filed: November 17, 2009
    Publication date: May 19, 2011
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Stephen P. Velarde, Andrew J. Sanderson
  • Patent number: 7910776
    Abstract: Methods of producing 1,3,5-triamino-2,4,6-trinitrobenzene (TATB), from alkoxy derivatives of phloroglucinol, such as 5-methoxyresorcinol, 3,5-dimethoxyphenol, or 1,3,5-trimethoxybenzene, are disclosed. The alkoxy derivatives may be exposed to and directly nitrated with a reaction mixture comprising a sulfuric acid solution and at least one nitrate salt. The nitrated alkoxy derivative of phloroglucinol may be alkoxylated and, thereafter, aminated to produce the TATB.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: March 22, 2011
    Assignee: Alliant Techsystems Inc.
    Inventors: Nicholas A. Straessler, Stephen P. Velarde
  • Publication number: 20100317894
    Abstract: Methods of producing 1,3,5-triamino-2,4,6-trinitrobenzene (TATB), from alkoxy derivatives of phloroglucinol, such as 5-methoxyresorcinol, 3,5-dimethoxyphenol, or 1,3,5-trimethoxybenzene, are disclosed. The alkoxy derivatives may be exposed to and directly nitrated with a reaction mixture comprising a sulfuric acid solution and at least one nitrate salt. The nitrated alkoxy derivative of phloroglucinol may be alkoxylated and, thereafter, aminated to produce the TATB.
    Type: Application
    Filed: June 15, 2009
    Publication date: December 16, 2010
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Nicholas A. Straessler, Stephen P. Velarde
  • Patent number: 7745643
    Abstract: The present invention provides cyclic nitro compounds, pharmaceutical compositions of cyclic nitro compounds and methods of using cyclic nitro compounds and/or pharmaceutical compositions thereof to treat or prevent diseases or disorders characterized by abnormal cell proliferation, such as cancer, inflammation, cardiovascular disease and autoimmune disease.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: June 29, 2010
    Assignee: Alliant Techsystems Inc.
    Inventors: Louis F. Cannizzo, Kirstin F. Warner, Robert B. Wardle, Stephen P. Velarde
  • Publication number: 20090093644
    Abstract: The present invention provides cyclic nitro compounds, pharmaceutical compositions of cyclic nitro compounds and methods of using cyclic nitro compounds and/or pharmaceutical compositions thereof to treat or prevent diseases or disorders characterized by abnormal cell proliferation, such as cancer, inflammation, cardiovascular disease and autoimmune disease.
    Type: Application
    Filed: October 15, 2008
    Publication date: April 9, 2009
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Louis F. Cannizzo, Kirstin F. Warner, Robert B. Wardle, Stephen P. Velarde
  • Patent number: 6881847
    Abstract: A method is provided for the synthesis of nitramines and the recovery of the nitramines from a clathrate.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: April 19, 2005
    Assignee: Alliant Techsystems Inc.
    Inventors: Thomas K. Highsmith, Jami M. Hanks, Stephen P. Velarde, Jeffrey Bottaro
  • Publication number: 20040024223
    Abstract: A method is provided for the synthesis of nitramines and the recovery of the nitramines from a clathrate.
    Type: Application
    Filed: June 5, 2003
    Publication date: February 5, 2004
    Inventors: Thomas K. Highsmith, Jami M. Hanks, Stephen P. Velarde, Jeffrey Bottaro
  • Patent number: 6603018
    Abstract: A method is provided for the synthesis of nitramines and the recovery of the nitramines from a clathrate.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: August 5, 2003
    Assignee: Alliant Techsystems Inc.
    Inventors: Thomas K. Highsmith, Jami M. Hanks, Stephen P. Velarde, Jeffrey Bottaro