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:
Jul. 23, 2024
Filed:
Sep. 12, 2022
Toshiba Tec Kabushiki Kaisha, Shinagawa-ku, JP;
Milong Sabandith, Irvine, CA (US);
TOSHIBA TEC KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A system and method of a system provides for tracking and controlling print cartridge ownership transfers using non-fungible tokens (NFTs). A print cartridge manufacture creates a unique NFT for each manufactured print cartridge that is stored on a public blockchain. Each NFT is encoded with a serial number of its associated cartridge, along with manufacturer information stored in the manufacturer's digital certificate. Each NFT may include manufacturer information, transactional information and a smart contract. Sale or resale of a cartridge is accomplished by a sale of its associated NFT on a digital marketplace. Sales are governed by smart contract terms. A buyer scans a cartridge QR code to decode its serial number which is then used to lookup manufacturer information, cartridge information and transactional information. If a purchase permitted and is accepted, the buyer information and sale information are updated to the blockchain with the associated NFT which is placed in the possession of the buyer.