Circle acquires IBM's expansive blockchain patent portfolio, becoming the top US holder

The IBM portfolio spans sectors beyond pure blockchain, including banking, financial services, insurance, enterprise infrastructure, supply-chain verification and cloud security.
IBM was a prolific blockchain patent filer historically, with more than 500 blockchain-related patents filed during the 2018–2019 peak.
Circle’s general counsel Sarah Wilson framed the deal as expanding Circle’s ability to advance the infrastructure that powers global, internet-native finance, noting IBM’s role as a pioneer in technological innovation.
Circle already has its own IP development path, having been granted its first patent for parallel block processing in December 2023, illustrating an active internal IP strategy.
Circle is a member of the LOT Network to defend against patent-assertion risk; the network now spans more than 3.8 million patents across over 2,800 members, with Circle joining in 2023 and 2025.
Circle Internet Group has acquired IBM's entire blockchain patent portfolio, making it the largest holder of blockchain patents in the United States, according to crypto.news and CryptoTimes. The deal covers more than 680 patent families and nearly 1,000 issued patents worldwide. No price was disclosed, but Circle's stock ticked up about 2% to 3% in premarket trading on the news.
The patents span blockchain infrastructure, banking, financial services, insurance, supply-chain verification, enterprise systems, and cloud security. IBM built this portfolio during a massive filing push — more than 500 blockchain-related patents in 2018 and 2019 alone — before slowing its pace. Now Circle owns it all.
Before this deal, Circle was a player in blockchain IP but not a dominant one. The company received its very first patent — for parallel block processing — only in December 2023. Now, in one transaction, it has jumped to the top of the U.S. blockchain patent rankings, according to MarketScreener.
Circle's general counsel Sarah Wilson called IBM "a pioneer in technological innovation." She said the deal expands Circle's ability to "advance the infrastructure that powers global, internet-native finance." The portfolio gives Circle a broad legal shield — known as an IP moat — around its core products.
IBM's blockchain patents were never just about crypto trading or digital coins. The portfolio runs deep into enterprise territory: supply-chain tracking, banking systems, insurance platforms, and cloud security, according to crypto.news. That broad reach is a big part of what makes it valuable.
IBM filed aggressively from 2017 through 2019, staking out foundational blockchain concepts. After the peak, filings slowed as IBM shifted strategic focus. That pause left a large, mature portfolio sitting on the shelf — one Circle is now betting can underpin a new generation of financial infrastructure.
Circle says the patents will directly support four key products: USDC (its dollar-backed digital currency), the Circle Payments Network, its Arc blockchain, and tools built for AI agents. Each of these competes in fast-growing markets where IP protection can determine who wins, according to MarketScreener.
The supply-chain patents add an interesting angle. They could let Circle offer enterprise clients tools for tracking goods and verifying data across complex networks — well beyond simple payments. That would push Circle into territory traditionally owned by large tech firms and logistics companies.
Owning nearly 1,000 patents also makes you a target. To guard against patent trolls — firms that buy patents only to sue others — Circle joined the LOT Network. That group now spans more than 3.8 million patents across over 2,800 member companies, according to CryptoTimes. Circle joined in both 2023 and 2025.
The LOT Network works by having members agree not to assert patents against each other. It cuts litigation risk sharply. For Circle, holding IBM's massive portfolio while staying inside a defensive alliance is a two-sided strategy: offense through ownership, defense through the network.
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