ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,788, issued on March 3, was assigned to Everlaw Inc. (Oakland, Calif.).

"Conversation graphs" was invented by Mathew John (Newark, Calif.), Joseph Kijewski (Berkeley, Calif.) and James Feng (Berkeley, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Conversation graphing capabilities accommodate subsets of conversations to be examined or reviewed. An "others" node is included in a conversation graph displayed through a user interface representing, in one implementation, all conversations not shown on the graph. Individual nodes and/or edges can be selected regardless of whether they are adjacent or connected. Information related to the communic...