Patents by Inventor Buu Chau

Buu Chau 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).

  • Process for preparing 2-[[5-(3-chlorophenyl)-3-hydroxypyridine-2-carbonyl]amino]acetic acid
    Patent number: 11713298
    Abstract: Disclosed herein are methods and processes of preparing vadadustat and pharmaceutically acceptable salts thereof, and intermediates of formula (I) and their salts useful for the synthesis of vadadustat.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: August 1, 2023
    Assignee: Akebia Therapeutics, Inc.
    Inventors: Boris I. Gorin, Christopher M. Lanthier, Anne Buu Chau Luong, James Densmore Copp, Javier Gonzalez
  • Process for Preparing 2-[[5-(3-Chlorophenyl)-3-Hydroxypyridine-2-Carbonyl]Amino]Acetic Acid
    Publication number: 20210070709
    Abstract: Disclosed herein are methods and processes of preparing vadadustat and pharmaceutically acceptable salts thereof, and intermediates of formula (I) and their salts useful for the synthesis of vadadustat.
    Type: Application
    Filed: May 8, 2019
    Publication date: March 11, 2021
    Inventors: Boris I. Gorin, Christopher M. Lanthier, Anne Buu Chau Luong, James Densmore Copp, Javier Gonzalez
  • User-wearable devices with power conserving features
    Patent number: 9442523
    Abstract: A user-wearable devices includes an on-body detector that uses one or more sensors of the device to detect whether or not the user-wearable device is being worn by a user. When the user-wearable device is detected as being worn by a user it is operated in a first mode, and when the user-wearable device is detected as not being worn by a user it is operated in a second mode that consumes less power than the first mode. Operating the user-wearable device in the first mode can include enabling wireless communication between the user-wearable device and a base station. Operating the user-wearable device in the second mode can include disabling wireless communication between the user-wearable device and a base station. Operating the user-wearable device in the second mode can also include disabling sensors of the user-wearable device and/or placing sensors of the user-wearable device in a low power mode.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: September 13, 2016
    Assignee: SALUTRON, INC.
    Inventors: Yong Jin Lee, Leo Bellontindos, Junnifer Tumanda, Jhovenden Baroro, Eddy Hui, Francis Uy, Buu Chau
  • USER-WEARABLE DEVICES WITH POWER CONSERVING FEATURES
    Publication number: 20160026212
    Abstract: A user-wearable devices includes an on-body detector that uses one or more sensors of the device to detect whether or not the user-wearable device is being worn by a user. When the user-wearable device is detected as being worn by a user it is operated in a first mode, and when the user-wearable device is detected as not being worn by a user it is operated in a second mode that consumes less power than the first mode. Operating the user-wearable device in the first mode can include enabling wireless communication between the user-wearable device and a base station. Operating the user-wearable device in the second mode can include disabling wireless communication between the user-wearable device and a base station. Operating the user-wearable device in the second mode can also include disabling sensors of the user-wearable device and/or placing sensors of the user-wearable device in a low power mode.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 28, 2016
    Inventors: Yong Jin Lee, Leo Bellontindos, Junnifer Tumanda, Jhovenden Baroro, Eddy Hui, Francis Uy, Buu Chau
  • High capacity, low jam envelope feeder for laser printer
    Patent number: 5520381
    Abstract: An envelope feeder using a combination of frictional force differentiation and three discrimination edges, two of which are provided by flexible materials spaced apart from and on either side of a metal envelope separating plate to prevent multiple envelope feeds into printers. The flexible plate on the media side of the metal envelope separating plate is at a more acute angle to the vertical than the metal envelope separating plate, and the metal envelope separating plate of the invention is at a more acute angle than the angles used by metal envelope separating plates in the prior art. A third discrimination edge is provided by a flexible plate which is behind the metal envelope separating plate and which has an angled portion which is longer than the angled portion of the metal envelope separating plate so as to extend past the end of the angled portion of the metal envelope separating plate by about 0.15 inches.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: May 28, 1996
    Assignee: Genesis Technology, Inc.
    Inventors: Thomas Y. Lo, Dan D. Le, Buu Chau