Patents by Inventor Cliff Liu

Cliff Liu 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: 10924920
    Abstract: A system and method are described for validating an IoT device. For example, a method in accordance with one embodiment comprises: generating a first random value to be used as a first offset into a first block of program code of an Internet of Things (IoT) device; transmitting a challenge request message to the IoT device, the challenge request including the first offset or data based on the first offset; receiving a challenge response message transmitted by the IoT device, the challenge response message comprising first authentication data for the first block of IoT device program code; and using the first authentication data to attempt to validate the first block of program code.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: February 16, 2021
    Assignee: Afero, Inc.
    Inventors: Scott Bartlett, Cliff Liu, Chris Aiuto, Kerry Quinn, Nickolas Heckman
  • Publication number: 20200336895
    Abstract: A system and method are described for validating an IoT device. For example, a method in accordance with one embodiment comprises: generating a first random value to be used as a first offset into a first block of program code of an Internet of Things (IoT) device; transmitting a challenge request message to the IoT device, the challenge request including the first offset or data based on the first offset; receiving a challenge response message transmitted by the IoT device, the challenge response message comprising first authentication data for the first block of IoT device program code; and using the first authentication data to attempt to validate the first block of program code.
    Type: Application
    Filed: April 22, 2019
    Publication date: October 22, 2020
    Inventors: SCOTT BARTLETT, CLIFF LIU, CHRIS AIUTO, KERRY QUINN, NICKOLAS HECKMAN
  • Patent number: 9622680
    Abstract: An apparatus for medical diagnosis and/or treatment is provides. The apparatus includes a flexible substrate forming an inflatable body and a plurality of sensing elements disposed on the flexible substrate. The plurality of sensing elements are disposed about the inflatable body such that the sensing elements are disposed at areas of minimal curvature of the inflatable body in a deflated state.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: April 18, 2017
    Assignee: MC10, Inc.
    Inventors: Roozbeh Ghaffari, Robert D'Angelo, Bassel De Graff, Kevin Dowling, Yung-Yu Hsu, Lauren E. Klinker, Stephen P. Lee, Cliff Liu
  • Publication number: 20170086747
    Abstract: An apparatus for medical diagnosis and/or treatment is provides. The apparatus includes a flexible substrate forming an inflatable body and a plurality of sensing elements disposed on the flexible substrate. The plurality of sensing elements are disposed about the inflatable body such that the sensing elements are disposed at areas of minimal curvature of the inflatable body in a deflated state.
    Type: Application
    Filed: December 8, 2016
    Publication date: March 30, 2017
    Inventors: Roozbeh Ghaffari, Robert D'Angelo, Bassel De Graff, Kevin Dowling, Yung-Yu Hsu, Lauren E. Klinker, Stephen P. Lee, Cliff Liu
  • Publication number: 20170086748
    Abstract: An apparatus for medical diagnosis and/or treatment is provides. The apparatus includes a flexible substrate forming an inflatable body and a plurality of sensing elements disposed on the flexible substrate. The plurality of sensing elements are disposed about the inflatable body such that the sensing elements are disposed at areas of minimal curvature of the inflatable body in a deflated state.
    Type: Application
    Filed: December 8, 2016
    Publication date: March 30, 2017
    Inventors: Roozbeh Ghaffari, Robert D'Angelo, Bassel De Graff, Kevin Dowling, Yung-Yu Hsu, Lauren E. Klinker, Stephen P. Lee, Cliff Liu
  • Publication number: 20170086749
    Abstract: An apparatus for medical diagnosis and/or treatment is provides. The apparatus includes a flexible substrate forming an inflatable body and a plurality of sensing elements disposed on the flexible substrate. The plurality of sensing elements are disposed about the inflatable body such that the sensing elements are disposed at areas of minimal curvature of the inflatable body in a deflated state.
    Type: Application
    Filed: December 8, 2016
    Publication date: March 30, 2017
    Inventors: Roozbeh Ghaffari, Robert D'Angelo, Bassel De Graff, Kevin Dowling, Yung-Yu Hsu, Lauren E. Klinker, Stephen P. Lee, Cliff Liu
  • Patent number: 9545216
    Abstract: An apparatus for medical diagnosis and/or treatment is provides. The apparatus includes a flexible substrate forming an inflatable body and a plurality of sensing elements disposed on the flexible substrate. The plurality of sensing elements are disposed about the inflatable body such that the sensing elements are disposed at areas of minimal curvature of the inflatable body in a deflated state.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: January 17, 2017
    Assignee: MC10, Inc.
    Inventors: Robert D'Angelo, Bassel de Graff, Kevin Dowling, Roozbeh Ghaffari, Lauren Klinker, Stephen P. Lee, Cliff Liu, Yung-Yu Hsu
  • Publication number: 20150320472
    Abstract: An apparatus for medical diagnosis and/or treatment is provides. The apparatus includes a flexible substrate forming an inflatable body and a plurality of sensing elements disposed on the flexible substrate. The plurality of sensing elements are disposed about the inflatable body such that the sensing elements are disposed at areas of minimal curvature of the inflatable body in a deflated state.
    Type: Application
    Filed: May 29, 2015
    Publication date: November 12, 2015
    Inventors: Roozbeh Ghaffari, Robert D'Angelo, Dan Davis, Bassel De Graff, Kevin Dowling, Brian David Elolampi, Yung-Yu Hsu, Lauren Klinker, Stephen P. Lee, Cliff Liu
  • Patent number: 8715332
    Abstract: According to aspects described herein, there is disclosed an improved hot balloon catheter delivery system for shape memory tubular stents is disclosed. An outer sheath is provided on the delivery system that facilitates stent placement on a balloon during delivery through an endoscope. In one embodiment, the stent may be positioned between radiopaque markers/electrodes and the balloon may be heated. The stent may be prevented from moving proximally relative to the catheter as the delivery system is tracked through the patient's anatomical passageways. The outer sheath may be positioned to ride over the proximal cone of the hot balloon catheter and abut the proximal end of the stent to facilitate proper alignment of the balloon for deployment. Upon deployment of the stent in an appropriate position, the sheath may be pulled away from the stent to expose the proximal cone of the balloon and thereby allow balloon and stent expansion.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: May 6, 2014
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Francisca Tan, Cliff Liu, Ron Sahatjian
  • Publication number: 20130150693
    Abstract: An apparatus for medical diagnosis and/or treatment is provides. The apparatus includes a flexible substrate forming an inflatable body and a plurality of sensing elements disposed on the flexible substrate. The plurality of sensing elements are disposed about the inflatable body such that the sensing elements are disposed at areas of minimal curvature of the inflatable body in a deflated state.
    Type: Application
    Filed: August 6, 2012
    Publication date: June 13, 2013
    Inventors: Robert D'Angelo, Bassel De Graff, Kevin Dowling, Roozbeh Ghaffari, Lauren Klinker, Stephen P. Lee, Cliff Liu, Yung-Yu Hsu
  • Publication number: 20090182412
    Abstract: According to aspects described herein, there is disclosed an improved hot balloon catheter delivery system for shape memory tubular stents is disclosed. An outer sheath is provided on the delivery system that facilitates stent placement on a balloon during delivery through an endoscope. In one embodiment, the stent may be positioned between radiopaque markers/electrodes and the balloon may be heated. The stent may be prevented from moving proximally relative to the catheter as the delivery system is tracked through the patient's anatomical passageways. The outer sheath may be positioned to ride over the proximal cone of the hot balloon catheter and abut the proximal end of the stent to facilitate proper alignment of the balloon for deployment. Upon deployment of the stent in an appropriate position, the sheath may be pulled away from the stent to expose the proximal cone of the balloon and thereby allow balloon and stent expansion.
    Type: Application
    Filed: January 13, 2009
    Publication date: July 16, 2009
    Inventors: Francisca Tan, Cliff Liu, Ron Sahatjian
  • Publication number: 20050228433
    Abstract: Methods of providing a polymeric body within a subject are described. The methods comprise: (a) injecting a fluid that comprises a crosslinkable polymer into a container (for instance, a balloon) that is positioned within the subject; (b) crosslinking the crosslinkable polymer in the container, thereby forming a crosslinked polymeric body in the container; (c) optionally washing the crosslinked polymeric body in the container; and (d) releasing the crosslinked polymeric body within the subject. Other aspects of the present invention are directed to devices for performing the above methods, and to the wide variety of polymeric bodies that can be formed using the above methods. Examples include antiadhesive bodies, aneurism fillers, embolic bodies, bulking agents, tissue scaffolding, drug delivery bodies, and so forth.
    Type: Application
    Filed: March 16, 2004
    Publication date: October 13, 2005
    Inventors: Weenna Bucay-Couto, Cliff Liu