IP Verse

Faunus UP Holdings LLC v. Sonova USA Inc. - 1:26-cv-00796

Faunus UP Holdings LLC v. Sonova USA Inc. (Case No. 1:26-cv-00796), filed on Jan 23, 2026 in the District Court, N.D. Illinois involving patent infringement. This case involves patent infringement claims between the parties. Explore details about the litigants, key filings, and major docket updates.

Case Details

Case Number
1:26-cv-00796
Filing Date
Jan 23, 2026
Cause of Action
Patent Infringement
Status
-
Court
District Court, N.D. Illinois
Nature of Suit
Patent

Parties Involved

The following parties are involved in this case, with their respective legal representatives for the case.

NameRepresented By
Sonova USA Inc. -
Faunus UP Holdings LLC -

Patents Involved

This case involves 4 patents, each of which is central to the dispute. These patents may be subject to claims of infringement, challenges to their validity, or other issues concerning their scope and enforcement.

Application NumberPatent Number
-US9172345B2
-US9711127B2
-US10347232B2
-US9871496B2

Docket Entries

The Docket Entries section provides a chronological list of all significant filings and court actions in this case.

DateDocket EntryType

Set alerts for critical docket entry

Jan 23, 2026COMPLAINT for Patent Infringement filed by Faunus UP Holdings LLC; Jury Demand. Filing fee $ 405, receipt number AILNDC-24633379. (Attachments: # 1 Exhibit List, # 2 Exhibit 1 United States Patent No. 9,172,345, # 3 Exhibit 2 United States Patent No. 9,711,127, # 4 Exhibit 3 United States Patent No. 9,871,496, # 5 Exhibit 4 United States Patent No. 10,347,232, # 6 Exhibit 5 United States Patent No. 9,172,345 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 7 Exhibit 6 United States Patent No. 9,711,127 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 8 Exhibit 7 United States Patent No. 9,871,496 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 9 Exhibit 8 United States Patent No. 10,347,232 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90))(Kalberg, Steven) (Entered: 01/23/2026)PACER Document
Jan 23, 2026CIVIL Cover Sheet (Kalberg, Steven) (Entered: 01/23/2026)PACER Document
Jan 23, 2026NOTIFICATION of Affiliates pursuant to Local Rule 3.2 by Faunus UP Holdings LLC (Kalberg, Steven) (Entered: 01/23/2026)PACER Document
Jan 23, 2026ATTORNEY Appearance for Plaintiff Faunus UP Holdings LLC by Steven G Kalberg (Kalberg, Steven) (Entered: 01/23/2026)PACER Document
Jan 23, 2026ATTORNEY Appearance for Plaintiff Faunus UP Holdings LLC by David Randolph Bennett (Bennett, David) (Entered: 01/23/2026)PACER Document
Jan 23, 2026CASE ASSIGNED to the Honorable LaShonda A. Hunt. Designated as Magistrate Judge the Honorable Laura K. McNally. Case assignment: Random assignment. (Civil Category 1). (nh, )PACER Document
Jan 23, 2026CLERK'S NOTICE: Pursuant to Local Rule 73.1(b), a United States Magistrate Judge of this court is available to conduct all proceedings in this civil action. If all parties consent to have the currently assigned United States Magistrate Judge conduct all proceedings in this case, including trial, the entry of final judgment, and all post-trial proceedings, all parties must sign their names on the attached Consent To form. This consent form is eligible for filing only if executed by all parties. The parties can also express their consent to jurisdiction by a magistrate judge in any joint filing, including the Joint Initial Status Report or proposed Case Management Order. (nh, )PACER Document
Jan 26, 2026MAILED patent report to Patent Trademark Office, Alexandria VA (men, ) (Entered: 01/26/2026)PACER Document
Jan 23, 2026COMPLAINT for Patent Infringement filed by Faunus UP Holdings LLC; Jury Demand. Filing fee $ 405, receipt number AILNDC-24633379. (Attachments: # 1 Exhibit List, # 2 Exhibit 1 United States Patent No. 9,172,345, # 3 Exhibit 2 United States Patent No. 9,711,127, # 4 Exhibit 3 United States Patent No. 9,871,496, # 5 Exhibit 4 United States Patent No. 10,347,232, # 6 Exhibit 5 United States Patent No. 9,172,345 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 7 Exhibit 6 United States Patent No. 9,711,127 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 8 Exhibit 7 United States Patent No. 9,871,496 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 9 Exhibit 8 United States Patent No. 10,347,232 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90))(Kalberg, Steven) (Entered: 01/23/2026)Attachment
Jan 27, 2026MINUTE entry before the Honorable LaShonda A. Hunt: This case has been assigned to the calendar of Judge LaShonda A. Hunt. The parties are ordered to file the form Scheduling Order for Patent Cases by 3/19/26. A template for the Order can be found in Appendix A to the Local Patent Rules. Parties should review the Local Patent Rules prior to completing the Scheduling Order. A telephonic initial status hearing is set for 3/26/26 at 9:30 AM. Attorneys/parties may appear by dialing: 1-650-479-3207 and entering access code: 2311 499 1046. No attendee code is required. Please review in advance the policies governing telephonic hearings that can be found on Judge Hunt's webpage on the court website. Mailed notice (gel,) (Entered: 01/27/2026)PACER Document
Jan 23, 2026COMPLAINT for Patent Infringement filed by Faunus UP Holdings LLC; Jury Demand. Filing fee $ 405, receipt number AILNDC-24633379. (Attachments: # 1 Exhibit List, # 2 Exhibit 1 United States Patent No. 9,172,345, # 3 Exhibit 2 United States Patent No. 9,711,127, # 4 Exhibit 3 United States Patent No. 9,871,496, # 5 Exhibit 4 United States Patent No. 10,347,232, # 6 Exhibit 5 United States Patent No. 9,172,345 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 7 Exhibit 6 United States Patent No. 9,711,127 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 8 Exhibit 7 United States Patent No. 9,871,496 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 9 Exhibit 8 United States Patent No. 10,347,232 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90))(Kalberg, Steven) (Entered: 01/23/2026)Attachment
Jan 23, 2026COMPLAINT for Patent Infringement filed by Faunus UP Holdings LLC; Jury Demand. Filing fee $ 405, receipt number AILNDC-24633379. (Attachments: # 1 Exhibit List, # 2 Exhibit 1 United States Patent No. 9,172,345, # 3 Exhibit 2 United States Patent No. 9,711,127, # 4 Exhibit 3 United States Patent No. 9,871,496, # 5 Exhibit 4 United States Patent No. 10,347,232, # 6 Exhibit 5 United States Patent No. 9,172,345 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 7 Exhibit 6 United States Patent No. 9,711,127 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 8 Exhibit 7 United States Patent No. 9,871,496 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 9 Exhibit 8 United States Patent No. 10,347,232 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90))(Kalberg, Steven) (Entered: 01/23/2026)Attachment
Jan 23, 2026COMPLAINT for Patent Infringement filed by Faunus UP Holdings LLC; Jury Demand. Filing fee $ 405, receipt number AILNDC-24633379. (Attachments: # 1 Exhibit List, # 2 Exhibit 1 United States Patent No. 9,172,345, # 3 Exhibit 2 United States Patent No. 9,711,127, # 4 Exhibit 3 United States Patent No. 9,871,496, # 5 Exhibit 4 United States Patent No. 10,347,232, # 6 Exhibit 5 United States Patent No. 9,172,345 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 7 Exhibit 6 United States Patent No. 9,711,127 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 8 Exhibit 7 United States Patent No. 9,871,496 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 9 Exhibit 8 United States Patent No. 10,347,232 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90))(Kalberg, Steven) (Entered: 01/23/2026)Attachment
Jan 23, 2026COMPLAINT for Patent Infringement filed by Faunus UP Holdings LLC; Jury Demand. Filing fee $ 405, receipt number AILNDC-24633379. (Attachments: # 1 Exhibit List, # 2 Exhibit 1 United States Patent No. 9,172,345, # 3 Exhibit 2 United States Patent No. 9,711,127, # 4 Exhibit 3 United States Patent No. 9,871,496, # 5 Exhibit 4 United States Patent No. 10,347,232, # 6 Exhibit 5 United States Patent No. 9,172,345 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 7 Exhibit 6 United States Patent No. 9,711,127 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 8 Exhibit 7 United States Patent No. 9,871,496 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 9 Exhibit 8 United States Patent No. 10,347,232 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90))(Kalberg, Steven) (Entered: 01/23/2026)Attachment
Jan 23, 2026COMPLAINT for Patent Infringement filed by Faunus UP Holdings LLC; Jury Demand. Filing fee $ 405, receipt number AILNDC-24633379. (Attachments: # 1 Exhibit List, # 2 Exhibit 1 United States Patent No. 9,172,345, # 3 Exhibit 2 United States Patent No. 9,711,127, # 4 Exhibit 3 United States Patent No. 9,871,496, # 5 Exhibit 4 United States Patent No. 10,347,232, # 6 Exhibit 5 United States Patent No. 9,172,345 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 7 Exhibit 6 United States Patent No. 9,711,127 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 8 Exhibit 7 United States Patent No. 9,871,496 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 9 Exhibit 8 United States Patent No. 10,347,232 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90))(Kalberg, Steven) (Entered: 01/23/2026)Attachment
Jan 23, 2026COMPLAINT for Patent Infringement filed by Faunus UP Holdings LLC; Jury Demand. Filing fee $ 405, receipt number AILNDC-24633379. (Attachments: # 1 Exhibit List, # 2 Exhibit 1 United States Patent No. 9,172,345, # 3 Exhibit 2 United States Patent No. 9,711,127, # 4 Exhibit 3 United States Patent No. 9,871,496, # 5 Exhibit 4 United States Patent No. 10,347,232, # 6 Exhibit 5 United States Patent No. 9,172,345 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 7 Exhibit 6 United States Patent No. 9,711,127 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 8 Exhibit 7 United States Patent No. 9,871,496 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 9 Exhibit 8 United States Patent No. 10,347,232 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90))(Kalberg, Steven) (Entered: 01/23/2026)Attachment
Jan 23, 2026COMPLAINT for Patent Infringement filed by Faunus UP Holdings LLC; Jury Demand. Filing fee $ 405, receipt number AILNDC-24633379. (Attachments: # 1 Exhibit List, # 2 Exhibit 1 United States Patent No. 9,172,345, # 3 Exhibit 2 United States Patent No. 9,711,127, # 4 Exhibit 3 United States Patent No. 9,871,496, # 5 Exhibit 4 United States Patent No. 10,347,232, # 6 Exhibit 5 United States Patent No. 9,172,345 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 7 Exhibit 6 United States Patent No. 9,711,127 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 8 Exhibit 7 United States Patent No. 9,871,496 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 9 Exhibit 8 United States Patent No. 10,347,232 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90))(Kalberg, Steven) (Entered: 01/23/2026)Attachment
Jan 23, 2026COMPLAINT for Patent Infringement filed by Faunus UP Holdings LLC; Jury Demand. Filing fee $ 405, receipt number AILNDC-24633379. (Attachments: # 1 Exhibit List, # 2 Exhibit 1 United States Patent No. 9,172,345, # 3 Exhibit 2 United States Patent No. 9,711,127, # 4 Exhibit 3 United States Patent No. 9,871,496, # 5 Exhibit 4 United States Patent No. 10,347,232, # 6 Exhibit 5 United States Patent No. 9,172,345 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 7 Exhibit 6 United States Patent No. 9,711,127 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 8 Exhibit 7 United States Patent No. 9,871,496 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90), # 9 Exhibit 8 United States Patent No. 10,347,232 Claim 1 Infringement Claim Chart for Phonak Audeo Lumity (L90))(Kalberg, Steven) (Entered: 01/23/2026)Attachment