Patents by Inventor Justin C. McDonald

Justin C. McDonald 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).

  • Valves and pumps for microfluidic systems and method for making microfluidic systems
    Publication number: 20040228734
    Abstract: The present invention relates to microfluidic systems, including valves and pumps for microfluidic systems. The valves of the invention include check valves such as diaphragm valves and flap valves. Other valves of the invention include one-use valves. The pumps of the present invention include a reservoir and at least two check valves. The reservoir may be of variable volume. The present invention also relates to a flexible microfluidic system. The present invention additionally relates to a method of making microfluidic systems including those of the present invention. The method includes forming a microfluidic system on a master, connecting a support to the microfluidic system and removing the microfluidic system from the master. The support may remain connected to the microfluidic system or the microfluidic system may be transferred to another substrate. The present invention further relates to a method of manipulating a flow of a fluid in a microfluidic system.
    Type: Application
    Filed: June 14, 2004
    Publication date: November 18, 2004
    Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventors: Noo Li Jeon, Daniel T. Chiu, Christopher J. Wargo, Insung S. Choi, Hongkai Wu, Janelle R. Anderson, George M. Whitesides, Justin C. McDonald, Steven J. Metallo, Howard A. Stone
  • Valves and pumps for microfluidic systems and method for making microfluidic systems
    Patent number: 6767194
    Abstract: The present invention relates to microfluidic systems, including valves and pumps for microfluidic systems. The valves of the invention include check valves such as diaphragm valves and flap valves. Other valves of the invention include one-use valves. The pumps of the present invention include a reservoir and at least two check valves. The reservoir may be of variable volume. The present invention also relates to a flexible microfluidic system. The present invention additionally relates to a method of making microfluidic systems including those of the present invention. The method includes forming a microfluidic system on a master, connecting a support to the microfluidic system and removing the microfluidic system from the master. The support may remain connected to the microfluidic system or the microfluidic system may be transferred to another substrate. The present invention further relates to a method of manipulating a flow of a fluid in a microfluidic system.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: July 27, 2004
    Assignee: President and Fellows of Harvard College
    Inventors: Noo Li Jeon, Daniel T. Chiu, Christopher J. Wargo, Insung S. Choi, Hongkai Wu, Janelle R. Anderson, George M. Whitesides, Justin C. McDonald, Steven J. Metallo, Howard A. Stone
  • Valves and pumps for microfluidic systems and method for making microfluidic systems
    Publication number: 20020168278
    Abstract: The present invention relates to microfluidic systems, including valves and pumps for microfluidic systems. The valves of the invention include check valves such as diaphragm valves and flap valves. Other valves of the invention include one-use valves. The pumps of the present invention include a reservoir and at least two check valves. The reservoir may be of variable volume. The present invention also relates to a flexible microfluidic system. The present invention additionally relates to a method of making microfluidic systems including those of the present invention. The method includes forming a microfluidic system on a master, connecting a support to the microfluidic system and removing the microfluidic system from the master. The support may remain connected to the microfluidic system or the microfluidic system may be transferred to another substrate. The present invention further relates to a method of manipulating a flow of a fluid in a microfluidic system.
    Type: Application
    Filed: January 8, 2002
    Publication date: November 14, 2002
    Inventors: Noo Li Jeon, Daniel T. Chiu, Christopher J. Wargo, Insung S. Choi, Hongkai Wu, Janelle R. Anderson, George M. Whitesides, Justin C. McDonald, Steven J. Metallo, Howard A. Stone