Patents by Inventor James J. Watkins

James J. Watkins 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: 11148153
    Abstract: Various embodiments disclosed relate to a method of cold-spray deposition involving cooling the cold-spray nozzle by at least one of expanding and vaporizing a compressed cooling fluid in proximity to the cold-spray nozzle. The present disclosure also includes a cold-spray deposition spray head, a cooling jacket for a cold-spray deposition nozzle and a cold-spray deposition system comprising the same.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: October 19, 2021
    Assignees: University of Massachusetts, The United States of America as Represented by the Secretary of the Army
    Inventors: James J. Watkins, David Schmidt, Jacobo Morere Rodriguez, Victor K. Champagne
  • Publication number: 20200377420
    Abstract: Various embodiments disclosed relate to a method of forming a composite including a carbon composite structure. The method includes disposing a precursor composition on a substrate. The composition includes a porogen component, a carbon component, and a catalyst component. The method further includes irradiating the precursor composition to form the carbon composite structure.
    Type: Application
    Filed: August 18, 2017
    Publication date: December 3, 2020
    Inventors: James J. Watkins, Dong-Po Song, Wenhao Li
  • Publication number: 20200285145
    Abstract: Various embodiments disclosed relate to methods of manufacturing textured surfaces nanoimprint lithography with nanoparticulate inks. The present invention provides methods that allow flexible patterning of substrates with features having complex geometries.
    Type: Application
    Filed: September 28, 2018
    Publication date: September 10, 2020
    Inventors: James J. Watkins, Irene R. Howell
  • Publication number: 20200091498
    Abstract: Various embodiments disclosed relate to novel methods of fabricating 3-D Li ion batteries using direct nanoimprint lithography. The present invention includes methods of fabricating high surface area electrodes, including imprint patterning of high aspect ratio parallel grating style electrodes. The method includes coating a substrate with an ink containing nanoparticles and subsequently annealing the ink into a desired pattern.
    Type: Application
    Filed: March 16, 2018
    Publication date: March 19, 2020
    Inventors: James J. Watkins, Wenhao Li
  • Publication number: 20200073234
    Abstract: In various embodiments, the present invention provides a method comprising: disposing upon a first substrate, a first coating; texturing the first coating with a stamp; treating the textured first coating to form a master mold; where the master mold contains a mirror image of the texture contained in the first coating; and transferring the texture from the master mold to a second substrate.
    Type: Application
    Filed: December 8, 2017
    Publication date: March 5, 2020
    Inventors: James J. Watkins, Feyza Dundar
  • Publication number: 20200023390
    Abstract: Various embodiments disclosed relate to a method of cold-spray deposition involving cooling the cold-spray nozzle by at least one of expanding and vaporizing a compressed cooling fluid in proximity to the cold-spray nozzle. The present disclosure also includes a cold-spray deposition spray head, a cooling jacket for a cold-spray deposition nozzle and a cold-spray deposition system comprising the same.
    Type: Application
    Filed: April 19, 2019
    Publication date: January 23, 2020
    Inventors: James J. Watkins, David Schmidt, Jacobo Morere Rodriguez, Victor K. Champagne
  • Publication number: 20190243237
    Abstract: Various embodiments disclosed relate to methods of manufacturing a textured surface comprising disposing a nanoparticulate ink on a substrate.
    Type: Application
    Filed: June 26, 2017
    Publication date: August 8, 2019
    Inventors: James J. Watkins, Rohit Kothari
  • Publication number: 20130310525
    Abstract: The invention provides compositions and methods for inducing and enhancing order and nanostructures in block copolymers and surfactants by certain nonpolymeric additives, such as nanoparticles having an inorganic core and organic functional groups capable of hydrogen bonding. Various compositions having lattice order and nanostructures have been made from a variety of copolymers or surfactants that are mixed with nonpolymeric additives. Particularly, a variety of nanoparticles with an inorganic core and organic functional groups have been discovered to be effective in introducing or enhancing the degree of orders and nanostructures in diverse block copolymers and surfactants.
    Type: Application
    Filed: July 23, 2013
    Publication date: November 21, 2013
    Applicant: University of Massachusetts
    Inventors: James J. Watkins, Vikram K. Daga, Ying Lin
  • Patent number: 8501850
    Abstract: The invention provides compositions and methods for inducing and enhancing order and nanostructures in block copolymers and surfactants by certain nonpolymeric additives, such as nanoparticles having an inorganic core and organic functional groups capable of hydrogen bonding. Various compositions having lattice order and nanostructures have been made from a variety of copolymers or surfactants that are mixed with nonpolymeric additives. Particularly, a variety of nanoparticles with an inorganic core and organic functional groups have been discovered to be effective in introducing or enhancing the degree of orders and nanostructures in diverse block copolymers and surfactants.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: August 6, 2013
    Assignee: University of Massachusetts
    Inventors: James J. Watkins, Vikram K. Daga, Ying Lin
  • Publication number: 20120282132
    Abstract: Methods of the invention allow rapid production of high-porous, large-surface-area nanostructured metal and/or metal oxide at attractive low cost applicable to a wide variety of commercial applications such as sensors, catalysts and photovoltaics.
    Type: Application
    Filed: July 13, 2010
    Publication date: November 8, 2012
    Inventors: James J. Watkins, Christos Fotios Karanikas, David Reisner, Xinqing Ma, Jeff Roth, T. Danny Xiao, Stephen Paul Murphy
  • Publication number: 20110086985
    Abstract: The invention provides compositions and methods for inducing and enhancing order and nanostructures in block copolymers and surfactants by certain nonpolymeric additives, such as nanoparticles having an inorganic core and organic functional groups capable of hydrogen bonding. Various compositions having lattice order and nanostructures have been made from a variety of copolymers or surfactants that are mixed with nonpolymeric additives. Particularly, a variety of nanoparticles with an inorganic core and organic functional groups have been discovered to be effective in introducing or enhancing the degree of orders and nanostructures in diverse block copolymers and surfactants.
    Type: Application
    Filed: October 14, 2010
    Publication date: April 14, 2011
    Inventors: James J. Watkins, Vikram K. Daga, Ying Lin
  • Patent number: 7740821
    Abstract: A mesoporous silicate is prepared by a method that includes combining a silicate precursor, a bifunctional catalyst, and a structure-directing surfactant in an aqueous medium having a pH of about 4 to about 10. A mesoporous silicate forms as an aqueous suspension and can then be isolated. The mesoporous silicate can be formed under mild conditions of temperature and pH, and it exhibits a surprisingly high degree of network condensation.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: June 22, 2010
    Assignee: The University of Massachusetts
    Inventors: James J. Watkins, David M. Hess
  • Patent number: 7709959
    Abstract: An article includes a substrate and a metal layer adhered to a surface of the substrate so as to form an interface. The interface comprises an atomic concentration of carbon that is about 10% or less and of oxygen that is about 10% or less as determined by x-ray photoelectron spectroscopy.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: May 4, 2010
    Assignee: University of Massachusetts
    Inventors: James J. Watkins, Yinfeng Zong
  • Publication number: 20090324476
    Abstract: A mesoporous silicate is prepared by a method that includes combining a silicate precursor, a bifunctional catalyst, and a structure-directing surfactant in an aqueous medium having a pH of about 4 to about 10. A mesoporous silicate forms as an aqueous suspension and can then be isolated. The mesoporous silicate can be formed under mild conditions of temperature and pH, and it exhibits a surprisingly high degree of network condensation.
    Type: Application
    Filed: May 1, 2008
    Publication date: December 31, 2009
    Inventors: James J. Watkins, David M. Hess
  • Patent number: 7527826
    Abstract: Methods and resulting structures are described in which a metal layer is adhered to a surface of a substrate. The methods involve applying a sacrificial acidic organic layer to the surface of the substrate prior to depositing the metal layer onto the substrate. During deposition of the metal layer, the sacrificial acidic organic layer is substantially consumed, thereby leaving behind a metal/substrate interface that has excellent adhesion properties.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: May 5, 2009
    Assignee: University of Massachusetts
    Inventors: James J. Watkins, Yinfeng Zong
  • Publication number: 20080317953
    Abstract: Mesoporous articles and methods for making mesoporous articles are disclosed.
    Type: Application
    Filed: August 22, 2008
    Publication date: December 25, 2008
    Applicant: University of Massachusetts
    Inventors: James J. Watkins, Rajaram Pai
  • Patent number: 7419772
    Abstract: Mesoporous articles and methods for making mesoporous articles are disclosed.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: September 2, 2008
    Assignee: University of Massachusetts
    Inventors: James J. Watkins, Rajaram Pai
  • Patent number: 6992018
    Abstract: Methods are described for depositing a film or discontinuous layer of discrete clusters, of material (e.g., metals, metal mixtures or alloys, metal oxides, or semiconductors) on the surface of a substrate, e.g., a patterned silicon wafer, by i) dissolving a precursor of the material into a supercritical or near-supercritical solvent to form a supercritical or near-supercritical solution; ii) exposing the substrate to the solution, under conditions at which the precursor is stable in the solution; and iii) mixing a reaction reagent into the solution under conditions that initiate a chemical reaction involving the precursor, thereby depositing the material onto the solid substrate, while maintaining supercritical or near-supercritical conditions. The invention also includes similar methods for depositing material particles into porous solids, and films of materials on substrates or porous solids having material particles deposited in them.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: January 31, 2006
    Assignee: University of Massachusetts
    Inventors: James J. Watkins, Jason M. Blackburn, David P. Long, Jason L. Lazorcik
  • Patent number: 6984584
    Abstract: Methods for depositing materials onto a substrate surface or into a porous solid are disclosed. These methods include suppressing contamination of the deposited materials.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: January 10, 2006
    Assignee: University of Massachusetts
    Inventors: Jason M. Blackburn, Albertina Cabanas, James J. Watkins
  • Publication number: 20040229023
    Abstract: Methods are described for depositing a film or discontinuous layer of discrete clusters, of material (e.g., metals, metal mixtures or alloys, metal oxides, or semiconductors) on the surface of a substrate, e.g., a patterned silicon wafer, by i) dissolving a precursor of the material into a supercritical or near-supercritical solvent to form a supercritical or near-supercritical solution; ii) exposing the substrate to the solution, under conditions at which the precursor is stable in the solution; and iii) mixing a reaction reagent into the solution under conditions that initiate a chemical reaction involving the precursor, thereby depositing the material onto the solid substrate, while maintaining supercritical or near-supercritical conditions. The invention also includes similar methods for depositing material particles into porous solids, and films of materials on substrates or porous solids having material particles deposited in them.
    Type: Application
    Filed: December 24, 2003
    Publication date: November 18, 2004
    Applicant: University of Massachusetts, a Massachusetts corporation
    Inventors: James J. Watkins, Jason M. Blackburn, David P. Long, Jason L. Lazorcik