Patents by Inventor BOHOU LI

BOHOU LI 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).

  • Transactional protocol for snapshot isolation without synchronized clocks
    Patent number: 11886422
    Abstract: A protocol for implementing ACID transactions that provides snapshot isolation in a distributed setting that does not require synchronized clocks is described. The protocol ensures at commit time that transactions touching common objects do not commit out of order. The protocol can be used in the context of a distributed data lake built on an object store in which clients can transactionally add or remove objects from logical tables.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: January 30, 2024
    Assignee: Amazon Technologies, Inc.
    Inventors: Bohou Li, Vijayan Prabhakaran, Mehul A. Shah, Benjamin Sowell, Douglas Brian Terry
  • Generating data transformation workflows
    Patent number: 11797558
    Abstract: Data transformation workflows may be generated to transform data objects. A source data schema for a data object and a target data format or target data schema for a data object may be identified. A comparison of the source data schema and the target data format or schema may be made to determine what transformations can be performed to transform the data object into the target data format or schema. Code to execute the transformation operations may then be generated. The code may be stored for subsequent modification or execution.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: October 24, 2023
    Assignee: Amazon Technologies, Inc.
    Inventors: Mehul A. Shah, George Steven McPherson, Prajakta Datta Damle, Gopinath Duddi, Anurag Windlass Gupta, Benjamin Albert Sowell, Bohou Li
  • Tree-based approach for transactionally consistent version sets
    Patent number: 11709809
    Abstract: Techniques for using tree data structures to maintain a transactionally consistent set with support for time-travel queries are described. When a transaction commits, a new version of the tree data structure is created using a copy-on-write based method such that the tree shares internal nodes with previous trees to save space. This approach may be used in the implementation of a transactional data catalog in which the files that make up a table are stored in a transactional set.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: July 25, 2023
    Assignee: Amazon Technologies, Inc.
    Inventors: Bohou Li, Vijayan Prabhakaran, Mehul A. Shah, Benjamin Sowell, Douglas Brian Terry
  • Transactional version sets
    Patent number: 11599514
    Abstract: Techniques for implementing systems using transactional version sets are described. Transactional version sets or t-sets include a collection of elements, each having a collection of metadata. A t-set is transactional in that a sequence of updates to one or more t-sets are made within an atomic transaction. A t-set is versioned since each committed transaction that updates it produces a new timestamped version that can be accessed via time-travel queries.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: March 7, 2023
    Assignee: Amazon Technologies, Inc.
    Inventors: Vinay Agrawal, Bohou Li, Vikas Malik, Tushar Poddar, Vijayan Prabhakaran, Mukesh Punhani, Mehul A. Shah, Benjamin Sowell, Douglas Brian Terry
  • GENERATING DATA TRANSFORMATION WORKFLOWS
    Publication number: 20220100774
    Abstract: Data transformation workflows may be generated to transform data objects. A source data schema for a data object and a target data format or target data schema for a data object may be identified. A comparison of the source data schema and the target data format or schema may be made to determine what transformations can be performed to transform the data object into the target data format or schema. Code to execute the transformation operations may then be generated. The code may be stored for subsequent modification or execution.
    Type: Application
    Filed: October 1, 2021
    Publication date: March 31, 2022
    Applicant: Amazon Technologies, Inc.
    Inventors: Mehul A. Shah, George Steven McPherson, Prajakta Datta Damle, Gopinath Duddi, Anurag Windlass Gupta, Benjamin Albert Sowell, Bohou Li
  • Generating data transformation workflows
    Patent number: 11138220
    Abstract: Data transformation workflows may be generated to transform data objects. A source data schema for a data object and a target data format or target data schema for a data object may be identified. A comparison of the source data schema and the target data format or schema may be made to determine what transformations can be performed to transform the data object into the target data format or schema. Code to execute the transformation operations may then be generated. The code may be stored for subsequent modification or execution.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: October 5, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Mehul A. Shah, George Steven McPherson, Prajakta Datta Damle, Gopinath Duddi, Anurag Windlass Gupta, Benjamin Albert Sowell, Bohou Li
  • GENERATING DATA TRANSFORMATION WORKFLOWS
    Publication number: 20180150528
    Abstract: Data transformation workflows may be generated to transform data objects. A source data schema for a data object and a target data format or target data schema for a data object may be identified. A comparison of the source data schema and the target data format or schema may be made to determine what transformations can be performed to transform the data object into the target data format or schema. Code to execute the transformation operations may then be generated. The code may be stored for subsequent modification or execution.
    Type: Application
    Filed: December 20, 2016
    Publication date: May 31, 2018
    Applicant: Amazon Technologies, Inc.
    Inventors: MEHUL A. SHAH, GEORGE STEVEN MCPHERSON, PRAJAKTA DATTA DAMLE, GOPINATH DUDDI, ANURAG WINDLASS GUPTA, BENJAMIN ALBERT SOWELL, BOHOU LI