Bank of America filed for nine more blockchain patents.  These filings were recently made public by the U.S. Patent and Trademark Office.

In total, Bank of America now has filed for over 30 blockchain patents since last year.

These nine patents, which were filed on February 22, relate to settling transactions within a payment network.

Although Bank of America has not made any official announcement on the subject, reports suggest that the bank could be looking into setting up a blockchain-based payments system.

Read more at CoinDesk and Cointelelgraph.