Patents by Inventor Douwe van de Ruit

Douwe van de Ruit 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).

  • Primary and secondary blockchain device
    Patent number: 11316659
    Abstract: Some embodiments are directed to a blockchain management device (100) configured to distribute a new block of a secondary blockchain to at least one further blockchain management device that manages the secondary blockchain, and to distribute a transaction to at least one blockchain management device that manages a primary blockchain, said transaction comprising an identification of a set of transactions in the new block.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: April 26, 2022
    Assignee: KONINKLIJKE KPN N.V.
    Inventors: Douwe van de Ruit, Nikos Moustakas
  • Primary and secondary blockchain device
    Patent number: 11139979
    Abstract: Some embodiments are directed to a blockchain verification method for a secondary blockchain, the blockchain verification method including sending an activation transaction to a primary blockchain management device which is configured to manage the primary blockchain. The primary blockchain management device is configured to execute a smart contract based on input in the activation transaction generating a result, and publish the result on the primary blockchain.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: October 5, 2021
    Assignee: Koninklijke KPN N.V.
    Inventors: Douwe van de Ruit, Nikos Moustakas
  • PRIMARY AND SECONDARY BLOCKCHAIN DEVICE
    Publication number: 20210203476
    Abstract: Some embodiments are directed to a blockchain management device (100) configured to distribute a new block of a secondary blockchain to at least one further blockchain management device that manages the secondary blockchain, and to distribute a transaction to at least one blockchain management device that manages a primary blockchain, said transaction comprising an identification of a set of transactions in the new block.
    Type: Application
    Filed: October 19, 2018
    Publication date: July 1, 2021
    Inventors: Douwe van de Ruit, Nikos Moustakas
  • Blockchain transaction device and method
    Patent number: 10891384
    Abstract: Some embodiments relate to a blockchain transaction device arranged to generate a transaction for a blockchain. The blockchain transaction device is configured to generate a transaction, said transaction comprising a signature, by calling a signing interface of a cryptographic kernel application to obtain the signature for the transaction. The cryptographic kernel application is configured to access a high security data area and compute the signature from a private key.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: January 12, 2021
    Assignee: KONINKLIJKE KPN N.V.
    Inventors: Douwe van de Ruit, Rinze Cats
  • PRIMARY AND SECONDARY BLOCKCHAIN DEVICE
    Publication number: 20190190719
    Abstract: Some embodiments are directed to a blockchain verification method for a secondary blockchain, the blockchain verification method comprising sending an activation transaction to a primary blockchain management device which is configured to manage the primary blockchain, the primary blockchain management device being configured to execute a smart contract based on input in the activation transaction generating a result, and publish the result on the primary blockchain.
    Type: Application
    Filed: December 11, 2018
    Publication date: June 20, 2019
    Inventors: Douwe van de Ruit, Nikos Moustakas
  • Blockchain Transaction Device And Method
    Publication number: 20190121988
    Abstract: Some embodiments relate to a blockchain transaction device arranged to generate a transaction for a blockchain. The blockchain transaction device is configured to generate a transaction, said transaction comprising a signature, by calling a signing interface of a cryptographic kernel application to obtain the signature for the transaction. The cryptographic kernel application is configured to access a high security data area and compute the signature from a private key.
    Type: Application
    Filed: February 14, 2018
    Publication date: April 25, 2019
    Inventors: Douwe van de Ruit, Rinze Cats