US 8515765

Here is a concise summary of US patent 8515765:

Title: System and method for a cooperative conversational voice user interface

Assignee: The current assignee is VB Assets LLC, as of a reassignment recorded on 2018-07-25. A security interest was assigned to Contingency Capital Fund A LP on 2025-04-08. The original assignee was VoiceBox Technologies Corp.

Inventors: Larry Baldwin, Tom Freeman, Michael Tjalve, Blane Ebersold, Chris Weider

Filing Date: 2011-10-03

Issue Date: 2013-08-20

Abstract: The patent describes a cooperative conversational voice user interface that understands free-form human utterances. It builds on short-term and long-term shared knowledge to create explicit and/or implicit hypotheses about a user's intent. These hypotheses are ranked by certainty, and an adaptive response is generated for the user. Responses are crafted based on these certainty levels and aim to establish an appropriate context for subsequent utterances. The system is designed to tolerate misrecognitions and correct the conversational course through further utterances and responses.

Plain-language overview of each independent claim: I am unable to provide a plain-language overview of each independent claim as the "Claims" section was not present in the provided full patent text and was not found through web search.

Litigation:
The patent family is associated with litigation [cite: Original Patent Text]. Specific cases include:

• A PTAB case, IPR2025-00868, was filed and not instituted due to procedural reasons [cite: Original Patent Text].
• A US case (1:26-cv-00443) was filed in the Delaware District Court [cite: Original Patent Text].
• Another US case (1:24-cv-01368) was filed in the Delaware District Court [cite: Original Patent Text].
• A US case (2:24-cv-00828) was filed in the Texas Eastern District Court [cite: Original Patent Text].

A search for "CAFC 2026 dockets US8515765" did not yield specific dockets related to this patent number at the U.S. Court of Appeals for the Federal Circuit.