Patents by Inventor Tim Cheng

Tim Cheng 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).

  • Publication number: 20240117235
    Abstract: A coating protects a dissolvable component of a downhole tool, so that the dissolvable component can be deployed to a desired downhole location, perform under high stress for fracturing operations, and be efficiently dissolved after the fracturing operations are completed. The present invention elevates known greases for this functionality usually performed by complex factory fabricated polymer and metal coatings. The coating includes an activation layer, a first grease layer, and a second grease layer. The first grease layer and the second grease layer have differential grease layer consistency ranges and thickness rages. The coating includes non-uniform layers of manually applied greases onsite to control degradation of the component substrate as effectively as factory coatings pre-fabricated on the components.
    Type: Application
    Filed: October 11, 2022
    Publication date: April 11, 2024
    Inventors: Lei ZHAO, Jiaxiang REN, Tim DUNNE, Peng CHENG, Huailiang LIU
  • Patent number: 11952531
    Abstract: A coating protects a dissolvable component of a downhole tool, so that the dissolvable component can be deployed to a desired downhole location, perform under high stress for fracturing operations, and be efficiently dissolved after the fracturing operations are completed. The present invention elevates known greases for this functionality usually performed by complex factory fabricated polymer and metal coatings. The coating includes an activation layer, a first grease layer, and a second grease layer. The first grease layer and the second grease layer have differential grease layer consistency ranges and thickness rages. The coating includes non-uniform layers of manually applied greases onsite to control degradation of the component substrate as effectively as factory coatings pre-fabricated on the components.
    Type: Grant
    Filed: October 11, 2022
    Date of Patent: April 9, 2024
    Assignees: CNPC USA Corporation, Beijing Huamel, Inc., China National Petroleum Corporation
    Inventors: Lei Zhao, Jiaxiang Ren, Tim Dunne, Peng Cheng, Huailiang Liu
  • Patent number: 10663977
    Abstract: One variation of a method for dynamically querying a remote operator for assistance includes, at an autonomous vehicle: autonomously navigating along a roadway; at locations along the roadway, testing performance of a set of wireless networks; in response to degradation of the set of wireless networks, decreasing a sensitivity threshold for triggering remote operator events at the autonomous vehicle; in response to a condition at the autonomous vehicle exceeding the sensitivity threshold at a particular location along the roadway, triggering a remote operator event; during the remote operator event, transmitting sensor data to a remote computer system via a subset of wireless networks, in the set of wireless networks, based on performance of the set of wireless networks proximal the particular location; and executing a navigational command received from a remote operator via a wireless network in the set of wireless networks.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: May 26, 2020
    Inventors: Tim Cheng, Kah Seng Tay
  • Publication number: 20190354111
    Abstract: One variation of a method for dynamically querying a remote operator for assistance includes, at an autonomous vehicle: autonomously navigating along a roadway; at locations along the roadway, testing performance of a set of wireless networks; in response to degradation of the set of wireless networks, decreasing a sensitivity threshold for triggering remote operator events at the autonomous vehicle; in response to a condition at the autonomous vehicle exceeding the sensitivity threshold at a particular location along the roadway, triggering a remote operator event; during the remote operator event, transmitting sensor data to a remote computer system via a subset of wireless networks, in the set of wireless networks, based on performance of the set of wireless networks proximal the particular location; and executing a navigational command received from a remote operator via a wireless network in the set of wireless networks.
    Type: Application
    Filed: May 1, 2019
    Publication date: November 21, 2019
    Inventors: Tim Cheng, Kah Seng Tay
  • Patent number: 10074208
    Abstract: A method and apparatus for automated comparison of 3D images, such as specific shapes in images, for example, for detecting vascular changes and aneurysm growth. The method comprises an adaptive geodesic active contour (GAC) approach which can be performed in a single pass, or across multiple iterations. The method uniquely utilizes shape to identify targets in two 3D images so that images can be compared if there is any shape feature. A method is also described for iterative parameter image construction, which beneficially removes false positives. The technology is particularly well-suited for use in comparing geometric changes of aneurysms, tumors, thromboses, inflammations.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: September 11, 2018
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Aichi Chien, Tim Cheng, Xin Yang
  • Publication number: 20170053417
    Abstract: A method and apparatus for automated comparison of 3D images, such as specific shapes in images, for example, for detecting vascular changes and aneurysm growth. The method comprises an adaptive geodesic active contour (GAC) approach which can be performed in a single pass, or across multiple iterations. The method uniquely utilizes shape to identify targets in two 3D images so that images can be compared if there is any shape feature. A method is also described for iterative parameter image construction, which beneficially removes false positives. The technology is particularly well-suited for use in comparing geometric changes of aneurysms, tumors, thromboses, inflammations.
    Type: Application
    Filed: August 19, 2016
    Publication date: February 23, 2017
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Aichi Chien, Tim Cheng, Xin Yang
  • Publication number: 20150244684
    Abstract: The present patent application is directed to a data security management system. The system includes a security server configured to store an encryption key to encrypt a file or any data and a decryption key to decrypt the file or the data; a first computing device configured to send an access authorization list with authorization limit to the security server, request an encryption key from the security server, and encrypt the file or data with the encryption key received from the security server; a second computing device configured to request a decryption key from the security server and decrypt the encrypted file with the decryption key received from the security server; and a cloud storage configured to share the file between a first user using the first computing device and a second user using the second computing device.
    Type: Application
    Filed: September 10, 2013
    Publication date: August 27, 2015
    Inventors: Chan Yiu Ng, Zhengshan Yan, Shing Yee Chu, Kam Tim Cheng, Ting Him Lee, Dennis Chung Young