Cart Source LLC v. Gatekeeper Systems, Inc.

1:26-cv-00915

Overview

Case Number 1:26-cv-00915

Filing Date 2026-07-24

Status Litigation filed

Court District Court, D. Delaware (ded)

Presiding Judge Unassigned Judge

Nature of Suit 830 Patent

Jurisdiction Type Federal Question

Cause of Action 35:271 Patent Infringement

Jury Demand Plaintiff

Parties

Defendant

Gatekeeper Systems, Inc.

Represented By

0 Attorneys Listed

No attorneys available

Plaintiff

Cart Source LLC

Represented By

2 Attorneys Listed

Emily DiBenedetto

Shaw Keller LLP

Tel: +1 (302) 298-0713

DE, 1105 N Market St

Karen Elizabeth Keller

Shaw Keller LLP

Tel: +1 (302) 298-0700

1105 North Market Street, 12th Floor, Wilmington, DE 19801

Court & Judges

Court

District Court, D. Delaware (ded)

Presiding Judge

Unassigned Judge

Patents Involved

1 Patent

There is a single patent involved in this case.

Application Number	Patent Number	External Links
-	US11673427	Espacenet Google Patents

Docket Entries

COMPLAINT for Patent Infringement with Jury Demand against Gatekeeper Systems, Inc. (Filing fee $ 405, receipt number ADEDC-5025374) - filed by Cart Source LLC. (Attachments: # 1 Exhibit 1, # 2 Civil Cover Sheet)(oam) (Entered: 07/27/2026)

2026-07-24

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COMPLAINT for Patent Infringement with Jury Demand against Gatekeeper Systems, Inc. (Filing fee $ 405, receipt number ADEDC-5025374) - filed by Cart Source LLC. (Attachments: # 1 Exhibit 1, # 2 Civil Cover Sheet)(oam) (Entered: 07/27/2026)

2026-07-24

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COMPLAINT for Patent Infringement with Jury Demand against Gatekeeper Systems, Inc. (Filing fee $ 405, receipt number ADEDC-5025374) - filed by Cart Source LLC. (Attachments: # 1 Exhibit 1, # 2 Civil Cover Sheet)(oam) (Entered: 07/27/2026)

2026-07-24

View

Notice, Consent and Referral forms re: U.S. Magistrate Judge jurisdiction. (oam) (Entered: 07/27/2026)

2026-07-24

View

Cart Source LLC v. Gatekeeper Systems, Inc.

Overview

Parties

Defendant

Gatekeeper Systems, Inc.

Represented By

Plaintiff

Cart Source LLC

Represented By

Court & Judges

Patents Involved

Docket Entries

COMPLAINT for Patent Infringement with Jury Demand against Gatekeeper Systems, Inc. (Filing fee $ 405, receipt number ADEDC-5025374) - filed by Cart Source LLC. (Attachments: # 1 Exhibit 1, # 2 Civil Cover Sheet)(oam) (Entered: 07/27/2026)

COMPLAINT for Patent Infringement with Jury Demand against Gatekeeper Systems, Inc. (Filing fee $ 405, receipt number ADEDC-5025374) - filed by Cart Source LLC. (Attachments: # 1 Exhibit 1, # 2 Civil Cover Sheet)(oam) (Entered: 07/27/2026)

COMPLAINT for Patent Infringement with Jury Demand against Gatekeeper Systems, Inc. (Filing fee $ 405, receipt number ADEDC-5025374) - filed by Cart Source LLC. (Attachments: # 1 Exhibit 1, # 2 Civil Cover Sheet)(oam) (Entered: 07/27/2026)

Notice, Consent and Referral forms re: U.S. Magistrate Judge jurisdiction. (oam) (Entered: 07/27/2026)

Report to the Commissioner of Patents and Trademarks for Patent/Trademark Number(s) US 11,673,427 B2. (oam) (Entered: 07/27/2026)

Disclosure Statement pursuant to Rule 7.1: No Parents or Affiliates Listed filed by Cart Source LLC. (oam) (Entered: 07/27/2026)

Summons Issued as to Gatekeeper Systems, Inc. on 7/27/2026. (oam) (Entered: 07/27/2026)

SUMMONS Returned Executed by Cart Source LLC.Gatekeeper Systems, Inc. served on 7/27/2026, answer due 8/17/2026. (DiBenedetto, Emily) (Entered: 07/27/2026)

Case Assigned/Reassigned

Notice - Other

Stipulation to EXTEND Time

SO ORDERED AND ~Util - Set/Reset Answer Deadline

Appear Pro Hac Vice

-District Court Pro Hac Vice Fee - 03 Attorneys Credit Card Payment

SO ORDERED

Add Attorneys - PHV only

Stipulation to EXTEND Time

SO ORDERED AND ~Util - Set/Reset Answer Deadline

Answer to Complaint AND Counterclaim

Disclosure Statement - Rule 7.1

Order

Dismiss/Other

Brief - Opening Brief in Support

Cart Source LLC v. Gatekeeper Systems, Inc.

Overview

Parties

Defendant

Gatekeeper Systems, Inc. Follow

Represented By

Plaintiff

Cart Source LLC Follow

Represented By

Court & Judges

Patents Involved

Docket Entries

COMPLAINT for Patent Infringement with Jury Demand against Gatekeeper Systems, Inc. (Filing fee $ 405, receipt number ADEDC-5025374) - filed by Cart Source LLC. (Attachments: # 1 Exhibit 1, # 2 Civil Cover Sheet)(oam) (Entered: 07/27/2026)

COMPLAINT for Patent Infringement with Jury Demand against Gatekeeper Systems, Inc. (Filing fee $ 405, receipt number ADEDC-5025374) - filed by Cart Source LLC. (Attachments: # 1 Exhibit 1, # 2 Civil Cover Sheet)(oam) (Entered: 07/27/2026)

COMPLAINT for Patent Infringement with Jury Demand against Gatekeeper Systems, Inc. (Filing fee $ 405, receipt number ADEDC-5025374) - filed by Cart Source LLC. (Attachments: # 1 Exhibit 1, # 2 Civil Cover Sheet)(oam) (Entered: 07/27/2026)

Notice, Consent and Referral forms re: U.S. Magistrate Judge jurisdiction. (oam) (Entered: 07/27/2026)

Report to the Commissioner of Patents and Trademarks for Patent/Trademark Number(s) US 11,673,427 B2. (oam) (Entered: 07/27/2026)

Disclosure Statement pursuant to Rule 7.1: No Parents or Affiliates Listed filed by Cart Source LLC. (oam) (Entered: 07/27/2026)

Summons Issued as to Gatekeeper Systems, Inc. on 7/27/2026. (oam) (Entered: 07/27/2026)

SUMMONS Returned Executed by Cart Source LLC.Gatekeeper Systems, Inc. served on 7/27/2026, answer due 8/17/2026. (DiBenedetto, Emily) (Entered: 07/27/2026)

Case Assigned/Reassigned

Notice - Other

Stipulation to EXTEND Time

SO ORDERED AND ~Util - Set/Reset Answer Deadline

Appear Pro Hac Vice

-District Court Pro Hac Vice Fee - 03 Attorneys Credit Card Payment

SO ORDERED

Add Attorneys - PHV only

Stipulation to EXTEND Time

SO ORDERED AND ~Util - Set/Reset Answer Deadline

Answer to Complaint AND Counterclaim

Disclosure Statement - Rule 7.1

Order

Dismiss/Other

Brief - Opening Brief in Support

Track Case Updates

Gatekeeper Systems, Inc.

Cart Source LLC