Patent US5768528

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

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No PTAB proceedings on file. This patent has not been challenged through Inter Partes Review, Post-Grant Review, or Covered Business Method review at the USPTO. The absence is itself a signal — well-asserted patents eventually attract IPRs.

Cases on file (3)

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Specific litigation cases in our database that name US patent US5768528. The free-form analysis below may also discuss cases beyond this list.

  • Gigex, Inc. v. AOL LLCfiled Mar 28, 2017
    1:17-cv-00346U.S. District Court for the District of Delawareterminated Aug 10, 2017Dismissed

    Defendants: AOL LLC

  • Gigex, Inc. v. Apple Inc.filed Mar 28, 2017
    1:17-cv-00347U.S. District Court for the District of Delawareterminated Aug 10, 2017Dismissed

    Defendants: Apple Inc.

  • Gigex, Inc. v. Yahoo! Inc.filed Mar 28, 2017
    1:17-cv-00348U.S. District Court for the District of Delawareterminated Aug 10, 2017Dismissed

    Defendants: Yahoo! Inc.

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

✓ Generated

Litigation History of U.S. Patent No. 5,768,528

As of April 30, 2026, U.S. Patent No. 5,768,528 has been asserted in multiple patent infringement lawsuits by its owner, Gigex, Inc. (doing business as V-Cast). The litigation campaign has targeted several major technology companies.

Details of the known litigation are as follows:

1. Gigex, Inc. v. AOL LLC

  • Plaintiff: Gigex, Inc.
  • Defendant: AOL LLC
  • Jurisdiction: U.S. District Court for the District of Delaware
  • Case Number: 1:17-cv-00346
  • Filing Date: March 28, 2017
  • Status: The case was dismissed on August 10, 2017, following a joint stipulation of dismissal, which often indicates a settlement between the parties.

2. Gigex, Inc. v. Apple Inc.

  • Plaintiff: Gigex, Inc.
  • Defendant: Apple Inc.
  • Jurisdiction: U.S. District Court for the District of Delaware
  • Case Number: 1:17-cv-00347
  • Filing Date: March 28, 2017
  • Status: A joint stipulation of dismissal was filed on August 10, 2017, leading to the closure of the case, likely due to a settlement.

3. Gigex, Inc. v. Yahoo! Inc.

  • Plaintiff: Gigex, Inc.
  • Defendant: Yahoo! Inc.
  • Jurisdiction: U.S. District Court for the District of Delaware
  • Case Number: 1:17-cv-00348
  • Filing Date: March 28, 2017
  • Status: This case was also closed following a joint stipulation of dismissal filed on August 10, 2017, suggesting a settlement was reached.

In each of these cases, Gigex, Inc. alleged that the defendants' services for delivering online content and software updates infringed upon the methods described in US Patent 5,768,528. The asserted claims likely revolved around the patent's description of a scheduled, reliable system for downloading files where interruptions can be recovered by re-transmitting only the missing data segments. All three documented cases were filed on the same day and resolved simultaneously, indicating a coordinated legal strategy by the patent owner.

Disclaimer: This information is for analytical purposes and is based on searches of publicly available litigation databases, including the Unified Patents portal (https://portal.unifiedpatents.com/litigation/caselist). It does not constitute legal advice.

Generated 4/30/2026, 1:52:33 PM