Patents by Inventor Roy Zhao

Roy Zhao 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: 11970608
    Abstract: Provided are copolycarbonate compositions including a stabilizer package which comprise a phosphorous-containing acid, an ester of phosphorous-containing acid, and an organosulfonic stabilizer where the phosphorous-containing acid and the ester of a phosphorous-containing acid are present in a molar ratio of 1 to 2. The total stabilization package is for example, in the amount by weight of 4 to 32 ppm, 8 to 24 ppm, or 8 to 16 ppm and the organosulfonic stabilizer is, e.g., of 2 to 30 ppm, or 4 to 24 ppm, or 8 to 16 ppm.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: April 30, 2024
    Assignee: SHPP GLOBAL TECHNOLOGIES B.V.
    Inventors: Wei Zhao, Roy Ray Odle, Paul Dean Sybert
  • Patent number: 7361164
    Abstract: A medical delivery device comprising an elongate body having a plunger slidably and sealingly engaged to form a cavity to receive fluid materials and a first outlet disposed at an end of said body and has a male luer end portion and a valve assembly is disposed within the first outlet. The valve assembly has a valve means movable between an open position and a closed position and biasing means for biasing the valve means to a closed position. Actuating means are disposed within the male luer end portion and coupled to the valve means such that the valve means is movable to an open position when a female luer end portion of a medical accessory is coupled with the male luer end portion. A second outlet is disposed at the same end as the first outlet for controlling the exchange of gases from the environment to said cavity under the action of the plunger.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: April 22, 2008
    Assignee: Vasogen Ireland Limited
    Inventors: Philip J. Simpson, David G. Matsuura, Walter D. Gillespie, James A. Trinchera, Mark P. Costa, Taras Worona, Hao Chen, David A. R. Kanbergs, Kathleen Chancellor-Maddison, Roy Zhao, Bernard C. B. Lim
  • Publication number: 20070191787
    Abstract: A device for controlling the collection and delivery of materials to a patient, the device has a dispenser-engaging portion, the dispenser-engaging portion being operable in a release position to receive a materials dispenser when the dispenser is in a materials-containing configuration, the dispenser-engaging portion being operable in a lock condition for locking the dispenser therewith, and access control means for controlling the release and lock positions according to a material transaction condition.
    Type: Application
    Filed: November 26, 2003
    Publication date: August 16, 2007
    Inventors: Bernard Lim, Taras Worona, Davis Kanbergs, Mark Costa, Hao Chen, Roy Zhao, Gabriele Klein, Kathleen Chancellor-Maddison, David Matsuura, Philip Simpson, Walter Gillespie, John Mitchell
  • Publication number: 20050245872
    Abstract: A medical delivery device comprising an elongate body having a plunger slidably and sealingly engaged to form a cavity to receive fluid materials and a first outlet disposed at an end of said body and has a male luer end portion and a valve assembly is disposed within the first outlet. The valve assembly has a valve means movable between an open position and a closed position and biasing means for biasing the valve means to a closed position. Actuating means are disposed within the male luer end portion and coupled to the valve means such that the valve means is movable to an open position when a female luer end portion of a medical accessory is coupled with the male luer end portion. A second outlet is disposed at the same end as the first outlet for controlling the exchange of gases from the environment to said cavity under the action of the plunger.
    Type: Application
    Filed: April 28, 2005
    Publication date: November 3, 2005
    Inventors: Philip Simpson, David Matsuura, Walter Gillespie, James Trinchera, Mark Costa, Taras Worona, Hao Chen, Davis Kanbergs, Kathleen Chancellor-Maddison, Roy Zhao, Bernard Lim
  • Publication number: 20050154368
    Abstract: Disclosed herein is a system for the collection, treatment and delivery of an autologous blood sample, comprising a first syringe having a first body portion. A first sample transfer portion has a first syringe inlet for drawing an untreated blood sample from a patient and a first syringe outlet for dispensing the untreated blood sample. A blood sample treatment chamber having a chamber inlet, the first syringe outlet being operable to establish a dedicated first fluid coupling with the chamber inlet to dispense the untreated blood sample to the blood sample treatment chamber. The blood sample treatment chamber having a chamber outlet for dispensing a treated blood sample following treatment. The second syringe has a second body portion and a second sample transfer portion, the second sample transfer portion having a passage with a first access location which is operable to form a dedicated second fluid coupling with the chamber outlet.
    Type: Application
    Filed: November 19, 2004
    Publication date: July 14, 2005
    Applicant: VASOGEN IRELAND LIMITED
    Inventors: Bernard Lim, Taras Worona, Davis Kanbergs, Mark Costa, Roy Zhao, Gabriele Klein, Kathleen Muller, David Matsuura, Philip Simpson, Walter Gillespie, John Mitchell, Hao Chen
  • Publication number: 20050139651
    Abstract: A medical treatment process and system, in which a patient fluid is subjected to extracorporeal handling and treatment prior to administration to the patient, is provided. The system includes two or more treatment units which successively handle the fluid, and a token associated with the patient. The token includes a patient identification and, as the treatment proceeds, more information is added to the token as the fluid moves around the system until the token contains a record of the treatment conducted on the sample, the times of various treatments, and a verification that treatment has been conducted in accordance with pre-determined criteria. The token, provided it contains information verifying the identity of the patient and treatment according to specification, allows administration of the treated fluid to the patient and provides an audit record of the treatment.
    Type: Application
    Filed: November 19, 2004
    Publication date: June 30, 2005
    Applicant: VASOGEN IRELAND LIMITED
    Inventors: Bernard Lim, Taras Worona, Davis Kanbergs, Mark Costa, Hao Chen, Roy Zhao, Gabriele Klein, Kathleen Muller, David Matsuura, Philip Simpson, John Mitchell