U.S. Patent 11133943 was awarded to BUNDESDRUCKEREI GMBH KOMMANDANTENSTRASSE 18 on September 28, 2021 and is entitled “Issuing virtual documents in a block chain.” The first named inventor is Jorg Ruckriemen of Berlin, . The abstract contains an overview of the patent disclosure:

A method for issuing a virtual document by a first computer system of an issuer, includes creating the virtual document; calculating a hash value of the virtual document; sending a signed entry request including the hash value to a blockchain server; receiving the signed entry request by the blockchain server; and executing, by the blockchain server, program instructions of a program module identified by the signed entry request, wherein the execution of the program instructions includes checking the signature of the entry request, using a public cryptographic key of the issuer registered in the blockchain, and, if the signature is valid, generating an additional block of the blockchain for the issue of the virtual document, wherein the generated block includes an entry associated with the program module and including the first hash value. Link to Full Patent

This blockchain patent was originally filed on March 16, 2018  as U.S. Patent Application 16/494381 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 11133943. The primary examiner was Mahfuzur Rahman.

BUNDESDRUCKEREI GMBH KOMMANDANTENSTRASSE 18, who is the original assignee of this patent, has at least 1 total granted patents in the United States as of the date of this article. This blockchain patent has been cited 0 times by other U.S. patents according to our law firm research, and can be considered an innovative patent in the field of cryptocurrency and blockchain.

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