ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,720, issued on April 7, was assigned to Klaviyo Inc. (Boston).

"Electronic categorization of sub-users of a database for receiving an electronic action" was invented by Manuel Ventero Pena (Cambridge, Mass.), Carola Leiva (Brookline, Mass.), Alex Riina (Cambridge, Mass.), Stanley Wu (Chicago), Robert Huselid (Stamford, Conn.), Annika Sougstad (Boston), Alexandra Holness (Framingham, Mass.), Jordan Cora Chase (Salem, Mass.), Christopher Fox (Westport, Conn.), Jingwen Wu (Somerville, Mass.), Xiao Liu (Orinda, Calif.), Timothy Tadros (Boston), Nicolas Asnes (Cohasset, Mass.), Elliot Penson (Braintree, Mass.) and Dillon Jones (Medford, Mass.).

According to the abstract* released by t...