Patent 10912321
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 (0)
Specific litigation cases in our database that name US patent 10912321. The free-form analysis below may also discuss cases beyond this list.
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Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Based on the information provided in the patent text and the summary, the following litigation is known to involve U.S. Patent 10,912,321.
Known Litigation
1. U.S. Court of Appeals for the Federal Circuit
- Plaintiff-Appellant: ENVIRO TECH CHEMICAL SERVICES, INC.
- Defendant-Appellee: SAFE FOODS CORP.
- Jurisdiction: U.S. Court of Appeals for the Federal Circuit
- Case Number: 24-2160
- Filing Date: The filing date for this appeal is not specified in the provided documents.
- Outcome/Current Status: Decided on May 4, 2026. The court affirmed a lower court's decision, holding that several claims of US patent 10,912,321 are invalid for indefiniteness. The basis for the ruling was that the term "about" in the context of the claimed pH range was not sufficiently defined in the patent's specification. This case is cited in the patent's file wrapper (Source: https://portal.unifiedpatents.com/litigation/Court%20of%20Appeals%20for%20the%20Federal%20Circuit/case/24-2160).
Note: This appellate case implies a preceding case in a lower court (likely a U.S. District Court) where the initial invalidity decision was made. However, details of that specific lower court case, such as its case number, jurisdiction, and filing date, are not provided in the supplied documentation.
Generated 5/4/2026, 6:02:10 PM