Blockchain in general, is not a proprietary technology or proprietary concept. Satoshi created the first model for Bitcoin, but this was specific to Bitcoin's objectives, and Satoshi was not aiming at the Blockchain concept or technology, although it was the heart of Bitcoin.

What does that mean ?

That new types of Blockchains can come up at all times, not exactly the same as Bitcoin and still be useful in real life. We are at the beginning of all this and time will show which projects will best suit people's real needs.