Patents by Inventor Tak Wan

Tak Wan 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).

  • Biochemical analysis system
    Patent number: 11938476
    Abstract: A biochemical analysis system capable of sample preparation and processing can include at least one inlet channel having a non-fouling, slippery surface to autonomously transport a fluid sample to a chamber by a geometry of the at least one inlet channel. The at least one inlet channel can include a first end, which is open and exposed, and a second end connected to the chamber for mixing and reaction of the fluid sample, and the at least one inlet channel can include a converging or diverging angle.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: March 26, 2024
    Assignee: The Penn State Research Foundation
    Inventors: Pak Kin Wong, Tak-Sing Wong, Jing Wang, Hui Li, Yi Lu, Ying Wan
  • Equi-biaxial membrane stretcher
    Patent number: 9482604
    Abstract: A system for and method of stretching a membrane is provided. The system has a top plate and a bottom plate that are in parallel with each other and a plurality of flexible v trusses. The top plate is configured to move vertically. The v trusses are placed in circle and have arms pointing to the center. There is a clamp for each arm for clamping a membrane. When external force is applied to push the top plate towards the bottom plate, the force bends the trusses, which is translated to the horizontal displacement of the trusses with arms. As the trusses move outwards, the clamped membrane is stretched.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: November 1, 2016
    Assignee: NORTHEASTERN UNIVERSITY
    Inventors: William Campbell, Michael Howard, Jarrett Shamlian, Kai-Tak Wan
  • EQUI-BIAXIAL MEMBRANE STRETCHER
    Publication number: 20150101418
    Abstract: A system for and method of stretching a membrane is provided. The system has a top plate and a bottom plate that are in parallel with each other and a plurality of flexible v trusses. The top plate is configured to move vertically. The v trusses are placed in circle and have arms pointing to the center. There is a clamp for each arm for clamping a membrane. When external force is applied to push the top plate towards the bottom plate, the force bends the trusses, which is translated to the horizontal displacement of the trusses with arms. As the trusses move outwards, the clamped membrane is stretched.
    Type: Application
    Filed: April 17, 2013
    Publication date: April 16, 2015
    Inventors: William Campbell, Michael Howard, Jarrett Shamlian, Kai-Tak Wan
  • Radio Frequency Identification (RFID) system
    Publication number: 20060261938
    Abstract: A group of technologies related to RFID reader and tag are described, including: redundant networked multimedia RFID reader, auto-ranging RFID reader, auto-planning RFID reader, smart active antenna RFID reader and novel RFID tags. These enabling technologies bring RFID reader operations into a new level of automation, capability and ease of implementation.
    Type: Application
    Filed: June 16, 2005
    Publication date: November 23, 2006
    Inventors: Kin Lai, On Wong, Tak Wan, Hon Wong, Ngai Tsang, Pak Ma, Ping Ko, Chi Cheung