Patents by Inventor Dennis Nguyen

Dennis Nguyen 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: 11944518
    Abstract: A dilation catheter includes a shaft and an expandable element. The shaft includes a proximal portion and a distal portion. The distal portion includes a tip and a bend. The tip is sized and configured to pass through an isthmus of a Eustachian tube (ET). The bend is proximal to the tip. The bend is formed at an angle configured to provide insertion of the tip into the isthmus of the ET via an ear canal associated with the ET. The expandable element is disposed at the distal portion of the shaft. The expandable element is configured to transition between a non-expanded state and an expanded state. The expandable element in the non-expanded state is configured for insertion into the ET via the isthmus. The expandable element in the expanded state is configured to dilate the ET.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: April 2, 2024
    Assignee: Acclarent, Inc.
    Inventors: Randy S. Chan, Ketan P. Muni, Hung V. Ha, Andy Nguyen, Holger Sudhoff, Sivette Lam, Marc Dean, Dennis S. Poe
  • Publication number: 20230193726
    Abstract: A wellhead system includes a wellhead including a position sensor disposed in an inner surface of the wellhead, and a wellhead component to be installed in the wellhead, the wellhead component including a position indicator disposed in an outer surface of the wellhead component, wherein the position sensor is configured to transmit a position signal in response to the wellhead component entering into a predetermined aligned position in the wellhead.
    Type: Application
    Filed: February 17, 2023
    Publication date: June 22, 2023
    Inventors: Jose Navar, Kythu Nguyen, Dennis Nguyen, Delbert Vanderford, Jason Busch, Haw Keat Lim
  • Patent number: 11585191
    Abstract: A wellhead system includes a wellhead including a position sensor disposed in an inner surface of the wellhead, and a wellhead component to be installed in the wellhead, the wellhead component including a position indicator disposed in an outer surface of the wellhead component, wherein the position sensor is configured to transmit a position signal in response to the wellhead component entering into a predetermined aligned position in the wellhead.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: February 21, 2023
    Assignee: CAMERON INTERNATIONAL CORPORATION
    Inventors: Jose Navar, Kythu Nguyen, Dennis Nguyen, Delbert Vanderford, Jason Busch, Haw Keat Lim
  • Publication number: 20210095548
    Abstract: A wellhead system includes a wellhead including a position sensor disposed in an inner surface of the wellhead, and a wellhead component to be installed in the wellhead, the wellhead component including a position indicator disposed in an outer surface of the wellhead component, wherein the position sensor is configured to transmit a position signal in response to the wellhead component entering into a predetermined aligned position in the wellhead.
    Type: Application
    Filed: December 15, 2020
    Publication date: April 1, 2021
    Inventors: Jose Navar, Kythu Nguyen, Dennis Nguyen, Delbert Vanderford, Jason Busch, Haw Keat Lim
  • Patent number: 10871056
    Abstract: A wellhead system includes a wellhead including a position sensor disposed in an inner surface of the wellhead, and a wellhead component to be installed in the wellhead, the wellhead component including a position indicator disposed in an outer surface of the wellhead component, wherein the position sensor is configured to transmit a position signal in response to the wellhead component entering into a predetermined aligned position in the wellhead.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: December 22, 2020
    Assignee: CAMERON INTERNATIONAL CORPORATION
    Inventors: Jose Navar, Kythu Nguyen, Dennis Nguyen, Delbert Vanderford, Jason Busch, Haw Keat Lim
  • Publication number: 20180163520
    Abstract: A wellhead system includes a wellhead including a position sensor disposed in an inner surface of the wellhead, and a wellhead component to be installed in the wellhead, the wellhead component including a position indicator disposed in an outer surface of the wellhead component, wherein the position sensor is configured to transmit a position signal in response to the wellhead component entering into a predetermined aligned position in the wellhead.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 14, 2018
    Applicant: CAMERON INTERNATIONAL CORPORATION
    Inventors: Jose NAVAR, Kythu NGUYEN, Dennis NGUYEN, Delbert VANDERFORD, Jason BUSCH, Haw Keat LIM
  • Publication number: 20050167095
    Abstract: A wellhead hanger system that allows the use of either of two casing hangers depending upon whether the casing string to be suspended becomes stuck during installation and cannot be lowered to its expected depth is disclosed. A full bore test plug for use with the system is disclosed also.
    Type: Application
    Filed: January 29, 2004
    Publication date: August 4, 2005
    Inventor: Dennis Nguyen
  • Publication number: 20050006107
    Abstract: A running tool delivers a string through a wellhead in the same trip as a hanger with a seal and locking assembly. The string is secured downhole and the running tool is manipulated to release a lock to hold the hanger in a sealed position in the wellhead prior to a tensile force being applied. A ratchet assembly permits the string to stretch and the tensile force is then locked in. The running tool is rotated out of the string and the tree is installed on the wellhead for subsequent procedures or production.
    Type: Application
    Filed: July 7, 2003
    Publication date: January 13, 2005
    Inventors: Dennis Nguyen, Delbert Vanderford