Patents by Inventor Richard H. Huang

Richard H. Huang 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).

  • Tamper resistant dosage forms
    Patent number: 11964056
    Abstract: The present invention relates to pharmaceutical dosage forms, for example to a tamper resistant dosage form including an opioid analgesic, and processes of manufacture, uses, and methods of treatment thereof.
    Type: Grant
    Filed: September 27, 2023
    Date of Patent: April 23, 2024
    Assignees: Purdue Pharma L.P, Purdue Pharmaceuticals L.P.
    Inventors: William H. McKenna, Richard O. Mannion, Edward P. O'Donnell, Haiyong H. Huang
  • TAMPER RESISTANT DOSAGE FORMS
    Publication number: 20240115507
    Abstract: The present invention relates to pharmaceutical dosage forms, for example to a tamper resistant dosage form including an opioid analgesic, and processes of manufacture, uses, and methods of treatment thereof.
    Type: Application
    Filed: September 27, 2023
    Publication date: April 11, 2024
    Inventors: William H. MCKENNA, Richard O. MANNION, Edward P. O'DONNELL, Haiyong H. HUANG
  • Tamper resistant dosage forms
    Patent number: 11938225
    Abstract: The present invention relates to pharmaceutical dosage forms, for example to a tamper resistant dosage form including an opioid analgesic, and processes of manufacture, uses, and methods of treatment thereof.
    Type: Grant
    Filed: June 5, 2023
    Date of Patent: March 26, 2024
    Assignees: Purdue Pharm L.P., Purdue Pharmaceuticals L.P.
    Inventors: William H. McKenna, Richard O. Mannion, Edward P. O'Donnell, Haiyong H. Huang
  • Multi-functional mortise lock
    Patent number: 7452012
    Abstract: A multi-functional mortise lock that can be rapidly converted between different functions without opening the mortise lock case by installing blocking screws that extend through threaded blocking openings in a sidewall of the case and into blocking interference with moving components inside the case. The moving components include a lock/unlock lever, a latch retract lever and a spindle hub. The blocking screws are stored in threaded storage openings in the sidewall of the case. The sidewall of the case is marked adjacent to the threaded blocking openings and storage openings to identify functions that will be performed when the blocking screws are installed in one or more of the blocking openings.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: November 18, 2008
    Assignee: Sargent Manufacturing Company
    Inventor: Richard H Huang
  • Retracting spindle for mortise lock
    Patent number: 6398274
    Abstract: A retracting spindle mechanism has a spindle that extends between a handle trim mechanism mounted on the face of a door and a mortised door lock. The spindle is rotated by the handle to operate the door lock and slides axially in a hub to accommodate doors of different thicknesses. A conical spring is used to urge the spindle to the extended position. The conical spring can be compressed until it is flat allowing the spindle mechanism to be used in trim mechanisms with paddle handles having limited space between the handle and the mortised lock mechanism. A pin extends transversely through the spindle and into a slot in the hub capturing the spring and holding the spindle mechanism together as an integral assembly.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: June 4, 2002
    Assignee: Sargent Manufacturing Company
    Inventors: Richard H. Huang, Ronald S. Slusarski