, 3 tweets, 2 min read Read on Twitter
1/ Half of all pending blockchain patents have been filed by only seven companies 
- IBM (143)
- nChain (112)
- Walmart (54)
- Intel (54)
- Alibaba (49)
- Mastercard (48)
- Bank of America (46)

theblockcrypto.com/2019/03/14/blo…
2/ South Korean blockchain service provider Coinplug is leading the way with 26 granted patents, followed by familiar companies in Bank of America (16), IBM (15), Mastercard (8), and Accenture (8).
3/ IBM has applied for more than 100 blockchain-related patents in the last six months. Walmart and Alibaba have also been active. On the other side of the spectrum, Dell has withdrawn the most patents in the last six months
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