Patents by Inventor Vernon Schryver

Vernon Schryver 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).

  • Lock-free updates to a domain name blacklist
    Patent number: 9591030
    Abstract: A computer-implemented method updates a domain name system blacklist in a lock-free manner is disclosed. In the method, an entry of the domain name blacklist is read at a DNS resolver in a plurality of DNS resolvers. The entry specifies a policy for the DNS resolver to execute when the DNS resolver receives a request to resolve a domain name. Before the reading is complete, an updated entry of the domain name blacklist is received, a new record to the domain name blacklist is added, and the entry being read is placed into a garbage pool having a current version number. Independently from the reading of the entry, the current version number is incremented and a new garbage pool is created for the incremented version number. When the reading is complete, the current version number is assigned to the DNS resolver.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: March 7, 2017
    Assignee: FARSIGHT SECURITY, INC.
    Inventor: Vernon Schryver
  • LOCK-FREE UPDATES TO A DOMAIN NAME BLACKLIST
    Publication number: 20170054761
    Abstract: A computer-implemented method updates a domain name system blacklist in a lock-free manner is disclosed. In the method, an entry of the domain name blacklist is read at a DNS resolver in a plurality of DNS resolvers. The entry specifies a policy for the DNS resolver to execute when the DNS resolver receives a request to resolve a domain name. Before the reading is complete, an updated entry of the domain name blacklist is received, a new record to the domain name blacklist is added, and the entry being read is placed into a garbage pool having a current version number. Independently from the reading of the entry, the current version number is incremented and a new garbage pool is created for the incremented version number. When the reading is complete, the current version number is assigned to the DNS resolver.
    Type: Application
    Filed: February 12, 2016
    Publication date: February 23, 2017
    Inventor: Vernon SCHRYVER
  • Lock-free updates to a domain name blacklist
    Patent number: 9264399
    Abstract: A computer-implemented method updates a domain name system blacklist in a lock-free manner is disclosed. In the method, an entry of the domain name blacklist is read at a DNS resolver in a plurality of DNS resolvers. The entry specifies a policy for the DNS resolver to execute when the DNS resolver receives a request to resolve a domain name. Before the reading is complete, an updated entry of the domain name blacklist is received, a new record to the domain name blacklist is added, and the entry being read is placed into a garbage pool having a current version number. Independently from the reading of the entry, the current version number is incremented and a new garbage pool is created for the incremented version number. When the reading is complete, the current version number is assigned to the DNS resolver.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: February 16, 2016
    Assignee: Farsight Security, Inc.
    Inventor: Vernon Schryver