Patents by Inventor Nikola Dudukovic

Nikola Dudukovic 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: 11833583
    Abstract: The present disclosure relates to a plurality of powder particles configured to be joined in an additive manufacturing process to form a part. Each one of the powder particles has a determined three dimensional, non-spherical shape. The plurality of powder particles are further of dimensions enabling fitting individual ones of the powder particles in abutting relationship with one another. At least a subplurality of the powder particles each have a functionalized surface feature to enhance at least one of clustering or separation of the subplurality of powder particles.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: December 5, 2023
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Seth Evan Watts, Nikola Dudukovic, Eric Duoss
  • Publication number: 20230302727
    Abstract: The present disclosure relates to a method for additively manufacturing a part. The method may involve using a reservoir to hold a granular material feedstock, and using a nozzle in communication with the reservoir to release the granular material feedstock in a controlled fashion from the reservoir to form at least one layer of a part. The method may further involve using an excitation source for applying a signal to the nozzle which induces a controlled release of the granular material feedstock from the nozzle as needed to pattern the granular material feedstock as necessary to form a layer of the part.
    Type: Application
    Filed: May 19, 2023
    Publication date: September 28, 2023
    Inventors: Nikola DUDUKOVIC, Roger AINES, Sarah BAKER, Joshua R. DEOTTE, Eric B. DUOSS, Jeremy Taylor FEASTER, Alexandra GOLOBIC, Julie MANCINI, Christopher M. SPADACCINI, Seth Evan WATTS, Michael John TROKSA
  • Patent number: 11697246
    Abstract: The present disclosure relates to an additive manufacturing system. In one embodiment the system makes use of a reservoir for holding a granular material feedstock. A nozzle is in communication with the reservoir for releasing the granular material feedstock in a controlled fashion from the reservoir to form at least one layer of a part. An excitation source is included for applying a signal which induces a controlled release of the granular material feedstock from the nozzle as needed, to pattern the granular material feedstock as necessary to form a layer of the part.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: July 11, 2023
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Nikola Dudukovic, Roger Aines, Sarah Baker, Joshua R. Deotte, Eric B. Duoss, Jeremy Taylor Feaster, Alexandra Golobic, Julie Mancini, Christopher M. Spadaccini, Seth Evan Watts, Michael John Troksa
  • Patent number: 11688596
    Abstract: The present disclosure relates to a lattice substrate adapted for use in direct ionization mass spectrometry. The substrate may have a plurality of tessellated unit cells forming an integral structure. Each tessellated unit cell may have a dimension of no more than about 1.5 mm and may include a plurality of pores arranged in an ordered pattern. The substrate may further include a form factor suitable for use with a direct ionization mass spectrometry system.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: June 27, 2023
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Maria C. Prieto Conaway, Joshua R. Deotte, Nikola Dudukovic, Eric B. Duoss, Bryan D. Moran
  • Publication number: 20230095982
    Abstract: The present disclosure relates to a method for forming a glass structure having a metallized surface portion. The method may comprise forming a structure using a flowable first material, adapted to form a glass, which includes a metal component. The structure is then treated to remove substantially all solvents and organic components contained in the first flowable material. Finally, the structure is exposed to a bath of a metal salt during which nucleation occurs and a metallized surface coating is formed on at least a portion of an outer surface of the structure.
    Type: Application
    Filed: September 29, 2021
    Publication date: March 30, 2023
    Inventors: Nikola DUDUKOVIC, Rebecca DYLLA-SPEARS, Megan Elizabeth ELLIS
  • Publication number: 20220305551
    Abstract: The present disclosure relates to a plurality of powder particles configured to be joined in an additive manufacturing process to form a part. Each one of the powder particles has a determined three dimensional, non-spherical shape. The plurality of powder particles are further of dimensions enabling fitting individual ones of the powder particles in abutting relationship with one another. At least a subplurality of the powder particles each have a functionalized surface feature to enhance at least one of clustering or separation of the subplurality of powder particles.
    Type: Application
    Filed: June 16, 2022
    Publication date: September 29, 2022
    Inventors: Seth Evan WATTS, Nikola DUDUKOVIC, Eric DUOSS
  • Publication number: 20220262613
    Abstract: The present disclosure relates to a lattice substrate adapted for use in direct ionization mass spectrometry. The substrate may have a plurality of tessellated unit cells forming an integral structure. Each tessellated unit cell may have a dimension of no more than about 1.5 mm and may include a plurality of pores arranged in an ordered pattern. The substrate may further include a form factor suitable for use with a direct ionization mass spectrometry system.
    Type: Application
    Filed: February 12, 2021
    Publication date: August 18, 2022
    Inventors: Maria C. PRIETO CONAWAY, Joshua R. DEOTTE, Nikola DUDUKOVIC, Eric B. DUOSS, Bryan D. MORAN
  • Publication number: 20220168814
    Abstract: The present disclosure relates to an additive manufacturing system. The system incorporates a nozzle in communication with a quantity of feedstock material including granular metal powder particles. The nozzle is configured to deposit the granular metal powder particles on at least one of a build plate or a previously formed material layer, to form at least one layer of a part. The system also incorporates a magnetic field generator subsystem for producing a magnetic field configured to orient the granular metal powder particles in a desired orientation before fusing of the granular metal powder particles occurs.
    Type: Application
    Filed: November 30, 2020
    Publication date: June 2, 2022
    Inventors: Nikola DUDUKOVIC, Alexander BAKER, Joshua R. DEOTTE, Eric B. DUOSS, Scott MCCALL
  • Publication number: 20220064427
    Abstract: According to one embodiment, a mixture includes a fluoropolymer monomer having at least one functional group amenable to polymerization, a pore-forming material, and a polymerization initiator. According to another embodiment, a product includes a porous three-dimensional structure comprising a crosslinked fluoropolymer, where at least 20% of a volume measured within an outer periphery of the porous three-dimensional structure corresponds to the pores.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 3, 2022
    Inventors: James Oakdale, Sarah E. Baker, Nikola Dudukovic, Eric B. Duoss, Melinda Lia Wah Jue
  • Publication number: 20210077999
    Abstract: The present disclosure relates to an engineered, additively manufactured, microfluidic cellular structure formed from a plurality of cells, wherein the cells are each formed from a plurality of interconnected elements. The cells have voids and each cell is open at upper ends thereof. The cells each communicate at a point below its upper end with a common channel. The cells are each configured to accept a fluid and operate to channel the fluid into the common channel and to hold the fluid received therein for later selective withdrawal from the structure.
    Type: Application
    Filed: November 13, 2020
    Publication date: March 18, 2021
    Inventors: Nikola DUDUKOVIC, Sarah BAKER, James Timothy CAHILL, Jonathan Tesner DAVIS, Joshua R. DEOTTE, Karen Ruth DUBBIN, Eric B. DUOSS, Erika Jo FONG, Hawi Bacha GEMEDA, Fang QIAN
  • Publication number: 20210053056
    Abstract: The present disclosure relates to a computer aided design (CAD) manufactured lattice structure. The structure may have a plurality of tessellated cells formed from a plurality of interconnected struts, with the interconnected struts formed from a curable resin. The interconnecting struts form voids within each cell, with the voids communicating with one another. The struts may be formed such that the voids have a non-uniform dimension to create a varying porosity within the lattice structure.
    Type: Application
    Filed: August 23, 2019
    Publication date: February 25, 2021
    Inventors: Nikola DUDUKOVIC, Sarah BAKER, Victor Alfred BECK, Swetha CHANDRASEKARAN, Joshua R. DEOTTE, Eric B. DUOSS, Jeremy Taylor FEASTER, Jennifer Marie KNIPE, Julie MANCINI, James OAKDALE, Fang QIAN, Marcus A. WORSLEY
  • Publication number: 20210008615
    Abstract: The present disclosure relates to a plurality of powder particles configured to be joined in an additive manufacturing process to form a part, and wherein each one of the powder particles comprises a three dimensional, non-spherical shape. The non-spherical shape of each one of the plurality of powder particles may be at least one of identical in three dimensional shape, or at least partially complementary in three dimensional shape, to each other. The plurality of powder particles may further be of dimensions enabling fitting individual ones of the plurality of particles in abutting relationship with one another with substantially no voids between them.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 14, 2021
    Inventors: Seth Evan WATTS, Nikola DUDUKOVIC, Eric DUOSS
  • Publication number: 20200147874
    Abstract: The present disclosure relates to an additive manufacturing system. In one embodiment the system makes use of a reservoir for holding a granular material feedstock. A nozzle is in communication with the reservoir for releasing the granular material feedstock in a controlled fashion from the reservoir to form at least one layer of a part. An excitation source is included for applying a signal which induces a controlled release of the granular material feedstock from the nozzle as needed, to pattern the granular material feedstock as necessary to form a layer of the part.
    Type: Application
    Filed: October 18, 2019
    Publication date: May 14, 2020
    Inventors: Nikola DUDUKOVIC, Roger AINES, Sarah BAKER, Joshua R. DEOTTE, Eric B. DUOSS, Jeremy Taylor FEASTER, Alexandra GOLOBIC, Julie MANCINI, Christopher M. SPADACCINI, Seth Evan WATTS, Michael John TROKSA
  • Publication number: 20200024465
    Abstract: According to one embodiment, a method includes forming a structure by printing an ink, the ink including a glass-forming material, and heat treating the formed structure for converting the glass-forming material to glass. According to another embodiment, an ink composition includes a glass-forming material and a solvent.
    Type: Application
    Filed: December 6, 2018
    Publication date: January 23, 2020
    Inventors: Rebecca Dylla-Spears, Theodore F. Baumann, Eric B. Duoss, Joshua D. Kuntz, Robin Miles, Du Nguyen, Christopher Spadaccini, Tayyab I. Suratwala, Timothy Dexter Yee, Cheng Zhu, Cameron David Meyers, Nikola Dudukovic, Tyler Fears, Fang Qian, Koroush Sasan, Joel Destino