Patents by Inventor Duk Loi

Duk Loi 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).

  • Advancements in data distribution methods and referential integrity
    Patent number: 9064031
    Abstract: An elastic parallel database system where data distribution is container- and container-context based. Container Based Tables are defined and Container Member Tables achieve co-location of data as needed. A polymorphic key may also establish polymorphic key relationships between rows in one table and rows in many other possible tables.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: June 23, 2015
    Assignee: Tesora, Inc.
    Inventors: Mrithyunjaya Annapragada, Douglas A. Shelley, Duk Loi, Benjamin Rousseau
  • Advancements in data distribution methods and referential integrity
    Patent number: 8938472
    Abstract: An elastic parallel database system where data distribution is container- and container-context based. Container Based Tables are defined and Container Member Tables achieve co-location of data as needed. A polymorphic key may also establish polymorphic key relationships between rows in one table and rows in many other possible tables.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: January 20, 2015
    Assignee: Tesora, Inc.
    Inventors: Mrithyunjaya Annapragada, Douglas A. Shelley, Duk Loi, Benjamin Rousseau
  • ADVANCEMENTS IN DATA DISTRIBUTION METHODS AND REFERENTIAL INTEGRITY
    Publication number: 20140214892
    Abstract: An elastic parallel database system where data distribution is container- and container-context based. Container Based Tables are defined and Container Member Tables achieve co-location of data as needed. A polymorphic key may also establish polymorphic key relationships between rows in one table and rows in many other possible tables.
    Type: Application
    Filed: August 14, 2013
    Publication date: July 31, 2014
    Applicant: ParElastic Corporation
    Inventors: Mrithyunjaya Annapragada, Douglas A. Shelley, Duk Loi, Benjamin Rousseau
  • ADVANCEMENTS IN DATA DISTRIBUTION METHODS AND REFERENTIAL INTEGRITY
    Publication number: 20140214894
    Abstract: An elastic parallel database system where data distribution is container- and container-context based. Container Based Tables are defined and Container Member Tables achieve co-location of data as needed. A polymorphic key may also establish polymorphic key relationships between rows in one table and rows in many other possible tables.
    Type: Application
    Filed: January 8, 2014
    Publication date: July 31, 2014
    Applicant: ParElastic Corporation
    Inventors: Mrithyunjaya Annapragada, Douglas A. Shelley, Duk Loi, Benjamin Rousseau
  • Out-of-band specification of metadata during database operations
    Patent number: 8768974
    Abstract: An elastic parallel database system where metadata is specified out-of-band during database operations via a set of augmentation rules. The rules are used to augment or modify commands received, and indicate whether they are to be used for specific connections on which they are received, for all client connections, or some other scope.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: July 1, 2014
    Assignee: Tesora, Inc.
    Inventors: Mrithyunjaya Annapragada, Benjamin Rousseau, Duk Loi, Peter Stachowski
  • Extensible handling of new or modified data within an independent distributed database system
    Patent number: 7562102
    Abstract: Newly added, deleted, or changed data of a local storage in a distributed database system is prevented from being replicated until it has been approved via a specific process. Any new, deleted, or changed records are initially marked as being candidate data. The normal replication processing within the distributed database system ignores such data. In this way, the candidate data is not allowed to leave its source site, and potentially contaminate the rest of the replication network, until that data has been approved. The approval process is provided by a candidate data scanner that detects the candidate data and provides it to a candidate data resolver for processing. The candidate data resolver is architected to provide for per installation extensibility.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: July 14, 2009
    Assignee: Progress Software Corporation
    Inventors: Jeffery Sumner, Duk Loi