ALEXANDRIA, Va., March 3 -- United States Patent no. 12,568,139, issued on March 3, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Establishment of persistent connection between file attachments uploaded to cloud storage and associated electronic communications" was invented by Ankur Suresh Lal (Seattle), Kyle Patrick Curlett (Seattle), Man Kwan Liu (Issaquah, Wash.), Daniel Sungje Choi (Sammamish, Wash.), Fiona Lieurance Gasaway (Seattle) and Cara Leggett Silver (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "Examples of the present disclosure describe systems and methods for establishing a persistent connection between file attachments uploaded to cloud storage and associated...