Patents by Inventor Anbang Wen

Anbang Wen 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).

  • Managing domain name system (DNS) record cache across multiple DNS servers using multicast communication
    Patent number: 11323414
    Abstract: A Domain Name System (DNS) resolver node receives a first DNS query from a first client device. The resolver node determines that it cannot answer the query using its local cache so it performs a recursive query to obtain the answer. The answer is sent to the first client and stored in its local cache. The resolver node further transmits the answer to multiple other resolver nodes that are part of the same cluster so they can update their respective local cache with the information. Upon receiving a message from another resolver node that includes a set of resource record(s) not in its local cache, the resolver node stores that set of resource record(s) in its local cache so that it can locally answer subsequent requests for those resource record(s) locally.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: May 3, 2022
    Assignee: CLOUDFLARE, INC.
    Inventors: Marek Vavrusa, Anbang Wen
  • Managing Domain Name System (DNS) Record Cache Across Multiple DNS Servers Using Multicast Communication
    Publication number: 20190364012
    Abstract: A Domain Name System (DNS) resolver node receives a first DNS query from a first client device. The resolver node determines that it cannot answer the query using its local cache so it performs a recursive query to obtain the answer. The answer is sent to the first client and stored in its local cache. The resolver node further transmits the answer to multiple other resolver nodes that are part of the same cluster so they can update their respective local cache with the information. Upon receiving a message from another resolver node that includes a set of resource record(s) not in its local cache, the resolver node stores that set of resource record(s) in its local cache so that it can locally answer subsequent requests for those resource record(s) locally.
    Type: Application
    Filed: August 6, 2019
    Publication date: November 28, 2019
    Inventors: Marek Vavrusa, Anbang Wen
  • Managing domain name system (DNS) record cache across multiple DNS servers using multicast communication
    Patent number: 10375016
    Abstract: A Domain Name System (DNS) resolver node receives a first DNS query from a first client device. The resolver node determines that it cannot answer the query using its local cache so it performs a recursive query to obtain the answer. The answer is sent to the first client and stored in its local cache. The resolver node further transmits the answer to multiple other resolver nodes that are part of the same cluster so they can update their respective local cache with the information. Upon receiving a message from another resolver node that includes a set of resource record(s) not in its local cache, the resolver node stores that set of resource record(s) in its local cache so that it can locally answer subsequent requests for those resource record(s) locally.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: August 6, 2019
    Assignee: CLOUDFLARE, INC.
    Inventors: Marek Vavrusa, Anbang Wen