Patents by Inventor Filippo Valsorda

Filippo Valsorda 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).

  • Generating a negative answer to a domain name system query that indicates resource records as existing for the domain name regardless of whether those resource records actually exist
    Patent number: 11647008
    Abstract: A DNS server receives, from a client device, a DNS query for a resource record type at a domain name. The DNS server determines that the resource record type does not exist at the domain name and generates an answer that indicates that the queried resource record type does not exist at the domain name and also indicates that a plurality of other resource record types exist at the domain name regardless of whether those plurality of other resource record types actually exist at the domain name. The DNS server transmits the generated answer to the client device.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: May 9, 2023
    Assignee: CLOUDFLARE, INC.
    Inventors: Daniel Morsing, Marek Majkowski, Nicholas Thomas Sullivan, Olafur Gudmundsson, Filippo Valsorda
  • Transparent DNSSEC-signing proxy
    Patent number: 10033699
    Abstract: A first DNS server receives, from a client device, a DNS query for a domain name and transmits, to a second DNS server, the DNS query for the domain name. The first DNS server receives, from the second DNS server, an answer to the DNS query that is unsigned. The first DNS server signs the received answer to the DNS query and transmits, to the client device, the signed DNS answer.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: July 24, 2018
    Assignee: CLOUDFLARE, INC.
    Inventors: Nicholas Thomas Sullivan, Olafur Gudmundsson, Filippo Valsorda
  • Generating a negative answer to a domain name system query that indicates resource records as existing for the domain name regardless of whether those resource records actually exist for the domain name
    Patent number: 9954840
    Abstract: A DNS server receives, from a client device, a DNS query for a resource record type at a domain name. The DNS server determines that the resource record type does not exist at the domain name and generates an answer that indicates that the queried resource record type does not exist at the domain name and also indicates that a plurality of other resource record types exist at the domain name regardless of whether those plurality of other resource record types actually exist at the domain name. The DNS server transmits the generated answer to the client device.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: April 24, 2018
    Assignee: CLOUDFLARE, INC.
    Inventors: Daniel Morsing, Marek Majkowski, Nicholas Thomas Sullivan, Olafur Gudmundsson, Filippo Valsorda