Patents by Inventor Hai Van

Hai Van 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: 11654615
    Abstract: A method for manufacturing a three-dimensional (3D) object with an additive manufacturing system, comprising a step consisting in printing layers of the 3D object from the part material comprising a polymeric component comprising, based on the total weight of the polymeric component: from 5 to 95 wt. % of at least one polymer (P1) comprising at least 50 mol. % of recurring units (R1) consisting of an arylene group comprising at least one benzene ring, each recurring unit (R1) being bound to each other through C—C bonds, wherein the recurring units (R1) are such that, based on the total number of moles of recurring units (R1):less than 90 mol. % are rigid rod-forming arylene units (R1-a), and at least 10 mol. % are kink-forming arylene units (R1-b), and from 5 to 95 wt. % of at least one polymer (P2), having a glass transition temperature (Tg) between 140° C. and 265° C., and no melting peak, as measured by differential scanning calorimetry (DSC) according to ASTM D3418.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: May 23, 2023
    Assignee: SOLVAY SPECIALTY POLYMERS USA, LLC
    Inventors: Stéphane Jeol, Nancy J. Singletary, Ryan Hammonds, Hai Van, David B. Thomas
  • Patent number: 11453774
    Abstract: The present disclosure relates to method of making three-dimensional (3D) objects using an additive manufacturing system wherein the part material comprises a polymeric component comprising at least one poly(ether ether ketone) polymer (PEEK) having a weight average molecular weight (Mw) ranging from 75,000 to 100,000 g/mol (as determined by GPC), for example in the form of filaments or spherical particles, for use in additive manufacturing systems to print 3D objects.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: September 27, 2022
    Inventors: Stéphane Jeol, Nancy J. Singletary, Hai Van, James Brown Hicks
  • Publication number: 20210277225
    Abstract: The present disclosure relates to method of making three-dimensional (3D) objects using an additive manufacturing system wherein the part material comprises a polymeric component comprising at least one poly(ether ether ketone) polymer (PEEK) having a weight average molecular weight (Mw) ranging from 75,000 to 100,000 g/mol (as determined by GPC), for example in the form of filaments or spherical particles, for use in additive manufacturing systems to print 3D objects.
    Type: Application
    Filed: March 30, 2018
    Publication date: September 9, 2021
    Inventors: Stéphane JEOL, Nancy J. SINGLETARY, Hai VAN, James Brown HICKS
  • Publication number: 20210069963
    Abstract: A method for manufacturing a three-dimensional (3D) object with an additive manufacturing system, comprising a step consisting in printing layers of the 3D object from the part material comprising a polymeric component comprising, based on the total weight of the polymeric component: from 5 to 95 wt. % of at least one polymer (P1) comprising at least 50 mol. % of recurring units (R1) consisting of an arylene group comprising at least one benzene ring, each recurring unit (R1) being bound to each other through C—C bonds, wherein the recurring units (R1) are such that, based on the total number of moles of recurring units (R1):less than 90 mol. % are rigid rod-forming arylene units (R1-a), and at least 10 mol. % are kink-forming arylene units (R1-b), and from 5 to 95 wt. % of at least one polymer (P2), having a glass transition temperature (Tg) between 140° C. and 265° C., and no melting peak, as measured by differential scanning calorimetry (DSC) according to ASTM D3418.
    Type: Application
    Filed: December 19, 2018
    Publication date: March 11, 2021
    Inventors: Stéphane JEOL, Nancy J. SINGLETARY, Ryan HAMMONDS, Hai VAN, David B. THOMAS
  • Publication number: 20210016494
    Abstract: The present disclosure relates to method for manufacturing three-dimensional (3D) objects using an additive manufacturing system wherein the part material comprises a combination of at least one poly(aryl ether ketone) polymer (PAEK) and at least one poly(aryl ether sulfone) (PAES). In particular, the present disclosure relates to part material incorporating PAEK and PAES, for example in the form of filaments or spherical particles, for use in additive manufacturing systems to print 3D objects.
    Type: Application
    Filed: September 23, 2020
    Publication date: January 21, 2021
    Inventors: Stéphane JEOL, Nancy J. SINGLETARY, Mohammad Jamal EL-HIBRI, Shari W. AXELRAD, Hai VAN
  • Publication number: 20200384681
    Abstract: The present disclosure relates to method of making three-dimensional (3D) objects using an additive manufacturing system wherein the part material comprises a polymeric component comprising a poly(biphenyl ether sulfone) polymer (PPSU) having an optimized weight average molecular weight (Mw). In particular, the present disclosure relates to part material incorporating a PPSU of Mw ranging from 48,000 to 52,000 g/mol, for example in the form of filaments or spherical particles, for use in additive manufacturing systems to print 3D objects.
    Type: Application
    Filed: March 30, 2018
    Publication date: December 10, 2020
    Inventors: Stéphane JEOL, Nancy J. SINGLETARY, Hai VAN
  • Publication number: 20200009785
    Abstract: The present disclosure relates to method for manufacturing three-dimensional (3D) objects using an additive manufacturing system wherein the part material comprises a combination of at least one poly(aryl ether ketone) polymer (PAEK) and at least one poly(aryl ether sulfone) (PAES). In particular, the present disclosure relates to part material incorporating PAEK and PAES, for example in the form of filaments or spherical particles, for use in additive manufacturing systems to print 3D objects.
    Type: Application
    Filed: February 5, 2018
    Publication date: January 9, 2020
    Inventors: Stéphane JEOL, Nancy J. SINGLETARY, Mohammad Jamal EL-HIBRI, Shari W. AXELRAD, Hai VAN
  • Patent number: 7870342
    Abstract: A memory storage system includes a line cache including a plurality of pages. A first central processing unit (CPU) accesses data stored in the pages of the line cache. A first memory device stores data that is loaded into the line cache when a miss occurs. After an initial miss, the line cache prevents additional misses as long as the first CPU is addressing sequential memory locations of the first memory device. When the miss occurs, n pages of the line cache are loaded with data from sequential locations in the first memory device, wherein n is greater than one. When the CPU requests data from an mth page of the n pages in the line cache, wherein m is greater than one and less than or equal to n, the line cache loads p additional pages with data from sequential locations in the first memory device.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: January 11, 2011
    Assignee: Marvell International Ltd.
    Inventors: Son Ho, Kevin Tonthat, Hai Van, Joseph Sheredy