Patents by Inventor Tuan Van Le

Tuan Van Le 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: 11828052
    Abstract: A toilet seal for sealing between a plumbing fixture discharge and a waste drainpipe outlet is described. The toilet seal comprises a flange member having an inwardly extending flexible lip. A flexible sleeve extends downwardly from the flange member. The toilet seal further includes a compressible member having an upper surface disposed adjacent to a lower surface of the flange member. The compressible member further has a lower surface and a plurality of ridges extend downwardly from the lower surface of the compressible member.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: November 28, 2023
    Assignee: Coflex S.A. de C.V.
    Inventors: Eduardo Coronado, Pedro Gonzalez, Adam Robert Sampson, Tuan Van Le, Krishnaditya Arkalgud
  • Patent number: 11643798
    Abstract: The system includes a fluid valve with a modular and/or replaceable fluid control assembly that requires maintenance over a product life of the fluid valve. The modular and/or replaceable fluid control assembly includes at least one portion including a setting or presetting configured and arranged to control fluid flow behavior in the fluid valve. The setting or presetting is useable to control fluid flow in the modular and/or replaceable fluid control assembly after an upgrade or replacement of at least a portion of the modular and/or replaceable fluid control assembly. Further, the setting or presetting enables the modular and/or replaceable fluid control assembly to retain the fluid flow behavior following one or more upgrades or replacements of one or more portions of the modular and/or replaceable fluid control assembly.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: May 9, 2023
    Assignee: FLUIDMASTER, INC.
    Inventors: Tuan Van Le, Joseph Unkyung Han, Salvador Pena
  • Publication number: 20220170254
    Abstract: A toilet seal for sealing between a plumbing fixture discharge and a waste drainpipe outlet is described. The toilet seal comprises a flange member having an inwardly extending flexible lip. A flexible sleeve extends downwardly from the flange member. The toilet seal further includes a compressible member having an upper surface disposed adjacent to a lower surface of the flange member. The compressible member further has a lower surface and a plurality of ridges extend downwardly from the lower surface of the compressible member.
    Type: Application
    Filed: February 17, 2022
    Publication date: June 2, 2022
    Inventors: Eduardo Coronado, Pedro Gonzalez, Adam Robert Sampson, Tuan Van Le, Krishnaditya Arkalgud
  • Patent number: 11268270
    Abstract: A toilet seal for sealing between a plumbing fixture discharge and a waste drainpipe outlet is described. The toilet seal comprises a flange member having an inwardly extending flexible lip. A flexible sleeve extends downwardly from the flange member. The toilet seal further includes a compressible member having an upper surface disposed adjacent to a lower surface of the flange member. The compressible member further has a lower surface and a plurality of ridges extend downwardly from the lower surface of the compressible member.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: March 8, 2022
    Assignee: COFLEX S.A. DE C.V.
    Inventors: Eduardo Coronado, Pedro Gonzalez, Adam Robert Sampson, Tuan Van Le, Krishnaditya Arkalgud
  • Publication number: 20210395988
    Abstract: A fluid valve with a modular and/or replaceable fluid control assembly is disclosed, and is configured and arranged to require maintenance over a product life of the fluid valve. The modular and/or replaceable fluid control assembly includes at least one portion including a setting or presetting configured and arranged to control fluid flow behavior in the fluid valve. The setting or presetting is useable to control fluid flow in the modular and/or replaceable fluid control assembly after an upgrade or replacement of at least a portion of the modular and/or replaceable fluid control assembly. Further, the setting or presetting enables the modular and/or replaceable fluid control assembly to retain the fluid flow behavior following one or more upgrades or replacements of one or more portions of the modular and/or replaceable fluid control assembly.
    Type: Application
    Filed: May 27, 2021
    Publication date: December 23, 2021
    Inventors: Tuan Van Le, Joseph Unkyung Han, Salvador Pena
  • Patent number: 11142898
    Abstract: A fluid valve with a modular and/or replaceable fluid control assembly is disclosed, and is configured and arranged to require maintenance over a product life of the fluid valve. The modular and/or replaceable fluid control assembly includes at least one portion including a setting or presetting configured and arranged to control fluid flow behavior in the fluid valve. The setting or presetting is useable to control fluid flow in the modular and/or replaceable fluid control assembly after an upgrade or replacement of at least a portion of the modular and/or replaceable fluid control assembly. Further, the setting or presetting enables the modular and/or replaceable fluid control assembly to retain the fluid flow behavior following one or more upgrades or replacements of one or more portions of the modular and/or replaceable fluid control assembly.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: October 12, 2021
    Assignee: FLUIDMASTER, INC.
    Inventors: Tuan Van Le, Joseph Unkyung Han, Salvador Pena
  • Publication number: 20190323219
    Abstract: Embodiments include a fluid valve with a modular and/or replaceable fluid control assembly configured and arranged to require maintenance over a product life of the fluid valve. The modular and/or replaceable fluid control assembly includes at least one portion including a setting or presetting configured and arranged to control fluid flow behavior in the fluid valve. The setting or presetting is useable to control fluid flow in the modular and/or replaceable fluid control assembly after an upgrade or replacement of at least a portion of the modular and/or replaceable fluid control assembly. Further, the setting or presetting enables the modular and/or replaceable fluid control assembly to retain the fluid flow behavior following one or more upgrades or replacements of one or more portions of the modular and/or replaceable fluid control assembly.
    Type: Application
    Filed: April 18, 2019
    Publication date: October 24, 2019
    Inventors: Tuan Van Le, Joseph Unkyung Han, Salvador Pena
  • Patent number: 10294647
    Abstract: A toilet seal for sealing between a plumbing fixture discharge and a waste drainpipe outlet is described. The toilet seal comprises a flange member having an inwardly extending flexible lip and one or more raised ridges defining an annular seal extending upwardly from an upper surface of the flange member. The toilet seal further includes a radiused wall extending downwardly from the flange member, which cooperates with the flange member to define a cavity for receiving a compressible member. The toilet seal further comprises a flexible sleeve extending downwardly from the radiused wall. Related methods are described.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: May 21, 2019
    Assignee: Coflex S.A. de C.V.
    Inventors: Eduardo Coronado, Pedro Gonzalez, Adam Robert Sampson, Tuan Van Le, Krishnaditya Arkalgud
  • Publication number: 20190040616
    Abstract: A toilet seal for sealing between a plumbing fixture discharge and a waste drainpipe outlet is described. The toilet seal comprises a flange member having an inwardly extending flexible lip. A flexible sleeve extends downwardly from the flange member. The toilet seal further includes a compressible member having an upper surface disposed adjacent to a lower surface of the flange member. The compressible member further has a lower surface and a plurality of ridges extend downwardly from the lower surface of the compressible member.
    Type: Application
    Filed: October 8, 2018
    Publication date: February 7, 2019
    Inventors: Eduardo Coronado, Pedro Gonzalez, Adam Robert Sampson, Tuan Van Le, Krishnaditya Arkalgud
  • Patent number: 10119263
    Abstract: A toilet seal for sealing between a plumbing fixture discharge and a waste drainpipe outlet is described. The toilet seal comprises a flange member having an inwardly extending flexible lip and one or more raised ridges defining an annular seal extending upwardly from an upper surface of the flange member. The toilet seal further includes a radiused wall extending downwardly from the flange member, which cooperates with the flange member to define a cavity for receiving a compressible member. The toilet seal further comprises a flexible sleeve extending downwardly from the radiused wall. Related methods are described.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: November 6, 2018
    Assignee: Coflex S.A. de C.V.
    Inventors: Eduardo Coronado, Pedro Gonzalez, Adam Robert Sampson, Tuan Van Le, Krishnaditya Arkalgud
  • Publication number: 20170370087
    Abstract: A toilet seal for sealing between a plumbing fixture discharge and a waste drainpipe outlet is described. The toilet seal comprises a flange member having an inwardly extending flexible lip and one or more raised ridges defining an annular seal extending upwardly from an upper surface of the flange member. The toilet seal further includes a radiused wall extending downwardly from the flange member, which cooperates with the flange member to define a cavity for receiving a compressible member. The toilet seal further comprises a flexible sleeve extending downwardly from the radiused wall. Related methods are described.
    Type: Application
    Filed: September 8, 2017
    Publication date: December 28, 2017
    Inventors: Eduardo Coronado, Pedro Gonzalez, Adam Robert Sampson, Tuan Van Le, Krishnaditya Arkalgud
  • Patent number: 9783976
    Abstract: A toilet seal for sealing between a plumbing fixture discharge and a waste drainpipe outlet is described. The toilet seal comprises a flange member having an inwardly extending flexible lip and one or more raised ridges defining an annular seal extending upwardly from an upper surface of the flange member. The toilet seal further includes a radiused wall extending downwardly from the flange member, which cooperates with the flange member to define a cavity for receiving a compressible member. The toilet seal further comprises a flexible sleeve extending downwardly from the radiused wall. Related methods are described.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: October 10, 2017
    Assignee: Coflex S.A. de C.V.
    Inventors: Eduardo Coronado, Pedro Gonzalez, Adam Robert Sampson, Tuan Van Le, Krishnaditya Arkalgud
  • Publication number: 20150376887
    Abstract: A toilet seal for sealing between a plumbing fixture discharge and a waste drainpipe outlet is described. The toilet seal comprises a flange member having an inwardly extending flexible lip and one or more raised ridges defining an annular seal extending upwardly from an upper surface of the flange member. The toilet seal further includes a radiused wall extending downwardly from the flange member, which cooperates with the flange member to define a cavity for receiving a compressible member. The toilet seal further comprises a flexible sleeve extending downwardly from the radiused wall. Related methods are described.
    Type: Application
    Filed: September 2, 2015
    Publication date: December 31, 2015
    Inventors: Eduardo Coronado, Pedro Gonzalez, Adam Robert Sampson, Tuan Van Le, Krishnaditya Arkalgud
  • Publication number: 20150292190
    Abstract: A toilet seal for sealing between a plumbing fixture discharge and a waste drainpipe outlet is described. The toilet seal comprises a flange member having an inwardly extending flexible lip and one or more raised ridges defining an annular seal extending upwardly from an upper surface of the flange member. The toilet seal further includes a radiused wall extending downwardly from the flange member, which cooperates with the flange member to define a cavity for receiving a compressible member. The toilet seal further comprises a flexible sleeve extending downwardly from the radiused wall. Related methods are described.
    Type: Application
    Filed: February 13, 2015
    Publication date: October 15, 2015
    Inventors: Eduardo Coronado, Pedro Gonzalez, Adam Robert Sampson, Tuan Van Le, Krishnaditya Arkalgud
  • Publication number: 20140259342
    Abstract: A toilet lever assembly, including: (a) a sleeve dimensioned to pass through a toilet tank wall; (b) a rotatable post extending through the sleeve; (c) a toilet flush handle mounted to the end of the rotatable post that is positioned outside of the toilet tank; (d) a nut received onto the end of the sleeve that is positioned outside of the toilet tank; and (e) a lever housing mounted to the end of the post that is positioned inside of the toilet tank, the lever housing comprising: (i) an actuator for moving a toilet lever to cause a flush when the post is rotated, and (ii) a biasing mechanism for rotating the post back to a neutral position.
    Type: Application
    Filed: October 24, 2013
    Publication date: September 18, 2014
    Applicant: FLUIDMASTER, INC.
    Inventors: Tuan Van Le, Venkat Mallela, Can (Ken) Nguyen
  • Patent number: 7502509
    Abstract: Systems and methods are provided for correcting digital pen strokes written on a paper form using a digital pen. In one embodiment, a stroke collection file includes sets of coordinates corresponding to respective pen strokes written on the paper form including a mistake stroke that a user of the pen desires to correct and a removal stroke written through the mistake stroke using the digital pen. In one embodiment, the removal stroke includes a horizontal zigzag pattern having at least one horizontal extend further to the left and further to the right of the mistake stroke. In one embodiment, coordinates corresponding to the mistake stroke and the removal stroke are deleted from the stroke collection file. The stroke collection file may also include coordinates for a third pen stroke intended to replace the mistake stroke. One embodiment includes rendering an image of the paper form and the third pen stroke.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: March 10, 2009
    Assignee: Velosum, Inc.
    Inventors: Rodney L. Sheets, Tuan Van Le
  • Publication number: 20080121441
    Abstract: Systems and methods are provided for selecting a user-identified option from among a group of mutually exclusive options. In one embodiment a user marks the user-identified option on a paper form using a digital pen. A stroke collection file includes data corresponding to a set of digital pen strokes. A system determines a subset of the digital pen strokes that are associated with the group of mutually exclusive options. A last pen stroke in the subset made by the user is determined to be the pen stroke intended by the user for selecting among the group of mutually exclusive options.
    Type: Application
    Filed: May 11, 2007
    Publication date: May 29, 2008
    Applicant: VELOSUM, INC.
    Inventors: Rodney L. Sheets, Tuan Van Le
  • Publication number: 20070263946
    Abstract: Systems and methods are provided for correcting digital pen strokes written on a paper form using a digital pen. In one embodiment, a stroke collection file includes sets of coordinates corresponding to respective pen strokes written on the paper form including a mistake stroke that a user of the pen desires to correct and a removal stroke written through the mistake stroke using the digital pen. In one embodiment, the removal stroke includes a horizontal zigzag pattern having at least one horizontal extend further to the left and further to the right of the mistake stroke. In one embodiment, coordinates corresponding to the mistake stroke and the removal stroke are deleted from the stroke collection file. The stroke collection file may also include coordinates for a third pen stroke intended to replace the mistake stroke. One embodiment includes rendering an image of the paper form and the third pen stroke.
    Type: Application
    Filed: May 11, 2007
    Publication date: November 15, 2007
    Applicant: VELOSUM, INC.
    Inventors: Rodney L. Sheets, Tuan Van Le
  • Patent number: D792563
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: July 18, 2017
    Assignee: Coflex S.A. de C.V.
    Inventors: Eduardo Coronado, Pedro Gonzalez, Adam Robert Sampson, Tuan Van Le, Krishnaditya Arkalgud
  • Patent number: D857860
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: August 27, 2019
    Assignee: Coflex S.A. de C.V.
    Inventors: Eduardo Coronado, Pedro Gonzalez, Adam Robert Sampson, Tuan Van Le, Krishnaditya Arkalgud