https://www.reuters.com/article/us-couchbase-ipo/database-company-couchbase-files-for-u-s-ipo-idUSKCN2DX1FY >Database software firm Couchbase Inc on Monday registered for a U.S. initial public offering (IPO), according to a regulatory filing, as demand for data storage and processing soars from the remote working wave brought on by the COVID-19 pandemic.