Patents by Inventor Hung-Quoc Tran

Hung-Quoc Tran 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).

  • Material obtained by compaction and densification of metallic powder(s)
    Patent number: 11759857
    Abstract: The invention relates to a compacted and densified metal material having one or more phases formed of an agglomerate of grains, the cohesion of the material being provided by bridges formed between grains, said material having a relative density higher than or equal to 95% and preferably higher than or equal to 98%.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: September 19, 2023
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Jean-Claude Eichenberger, Hung Quoc Tran
  • MATERIAL OBTAINED BY COMPACTION AND DENSIFICATION OF METALLIC POWDER(S)
    Publication number: 20210187608
    Abstract: The invention relates to a compacted and densified metal material having one or more phases formed of an agglomerate of grains, the cohesion of the material being provided by bridges formed between grains, said material having a relative density higher than or equal to 95% and preferably higher than or equal to 98%.
    Type: Application
    Filed: March 5, 2021
    Publication date: June 24, 2021
    Applicant: ETA SA Manufacture Horlogere Suisse
    Inventors: Jean-Claude EICHENBERGER, Hung Quoc TRAN
  • Material obtained by compaction and densification of metallic powder(s)
    Patent number: 10987732
    Abstract: The invention relates to a compacted and densified metal material comprising one or more phases formed of an agglomerate of grains, the cohesion of the material being provided by bridges formed between grains, said material having a relative density higher than or equal to 95% and preferably higher than or equal to 98%.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: April 27, 2021
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Jean-Claude Eichenberger, Hung Quoc Tran
  • MATERIAL OBTAINED BY COMPACTION AND DENSIFICATION OF METALLIC POWDER(S)
    Publication number: 20190009331
    Abstract: The invention relates to a compacted and densified metal material comprising one or more phases formed of an agglomerate of grains, the cohesion of the material being provided by bridges formed between grains, said material having a relative density higher than or equal to 95% and preferably higher than or equal to 98%.
    Type: Application
    Filed: November 18, 2016
    Publication date: January 10, 2019
    Applicant: ETA SA Manufacture Horlogere Suisse
    Inventors: Jean-Claude EICHENBERGER, Hung Quoc TRAN
  • Resonator with reduced sensitivity to climatic variations
    Patent number: 10001749
    Abstract: A compensating balance spring for a thermally compensated sprung balance resonator including a core formed from at least one non-metallic material. The core is entirely coated with a layer which is moisture proof to render the balance spring less sensitive to climatic variations. The compensating balance spring can be applied to timepieces.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: June 19, 2018
    Assignee: Nivarox-FAR S.A.
    Inventors: Pierre Cusin, Thierry Hessler, Fatmir Salihu, Lucie Brocher, Hung Quoc Tran
  • RESONATOR WITH REDUCED SENSITIVITY TO CLIMATIC VARIATIONS
    Publication number: 20150301502
    Abstract: A compensating balance spring for a thermally compensated sprung balance resonator including a core formed from at least one non-metallic material. The core is entirely coated with a layer which is moisture proof to render the balance spring less sensitive to climatic variations. The compensating balance spring can be applied to timepieces.
    Type: Application
    Filed: October 10, 2013
    Publication date: October 22, 2015
    Applicant: Nivarox- FAR S.A.
    Inventors: Pierre Cusin, Thierry Hessler, Fatmir Salihu, Lucie Brocher, Hung Quoc Tran
  • Copper-based alloy
    Patent number: 9080226
    Abstract: Alloy on the basis of copper, zinc, nickel, lead and manganese having properties of resistance to corrosion, notably to inks and gel-inks. The inventive alloy can have a mono-phased alpha structure and a bi-phased alpha-beta structure and is especially suited to the production of tips and reservoirs for writing implements.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: July 14, 2015
    Assignee: SWISSMETAL UMS USINES METALLURGIQUES SUISSE SA
    Inventors: Stephane Gillieron, Hung-Quoc Tran, Emmanuel Vincent
  • Copper-based alloy
    Publication number: 20060065336
    Abstract: Alloy on the basis of copper, zinc, nickel and manganese having properties of resistance to corrosion, notably to inks and gel-inks. The inventive alloy can have a mono-phased alpha structure and a bi-phased alpha-beta structure and is especially suited to the production of tips and reservoirs for writing implements.
    Type: Application
    Filed: September 20, 2005
    Publication date: March 30, 2006
    Inventors: Stephane Gillieron, Hung-Quoc Tran, Emmanuel Vincent