The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2019
Filed:
Dec. 30, 2016
Applicant:
Guardtime Ip Holdings Limited, Tortola, VG;
Inventors:
Risto Alas, Tallinn, EE;
Hema Krishnamurthy, Phoenix, AZ (US);
Assignee:
Guardtime SA, Lausanne, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); G06F 21/64 (2013.01);
U.S. Cl.
CPC ...
H04L 9/3239 (2013.01); G06F 21/64 (2013.01); H04L 2209/38 (2013.01); H04L 2209/56 (2013.01);
Abstract
Blockchain blocks are provided with either or both of two element types that enable later verification of block validity. One element type is identifiers, such as signatures, of trusted validators that approve entry of the block into the blockchain. Another element is a history hash tree that encodes data from not only the current block, but also at least one previous block.