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Selected cases

High Court of Australia · [2020] HCA 41

Calidad v Seiko Epson

A High Court patent case about exhaustion of patent rights and modified printer cartridges.

High Court of Australia12 Nov 2020

Plain-English explainers, not legal advice. Check the linked official source before you rely on a specific section, and get advice for your situation.

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Quick read

  • A patent owner may not control every downstream use after first sale.
  • A High Court patent case about exhaustion of patent rights and modified printer cartridges.

Use this to check

  • Patent rights can be exhausted after first sale, but modifications still need legal analysis.
  • Repair and refurbishment businesses should check patent and product-safety risk together.
  • Importers need to understand overseas acquisition rights and Australian patent rights.

Decision snapshot

  1. 1

    What happened

    • Seiko Epson sold printer cartridges embodying patented inventions.
    • After the cartridges were used, a third party collected them, modified them so they could be refilled and reused, and Calidad imported and sold the modified cartridges in Australia.
    • Seiko alleged that the modifications and resale infringed its patent rights because the cartridges had effectively been remade.
  2. 2

    What the court had to decide

    • The Court had to decide whether the modifications amounted to impermissibly making a new patented product, and whether Australian law should use the exhaustion doctrine instead of the older implied licence approach after a patented product is sold.
  3. 3

    What the court decided

    • The High Court allowed Calidad's appeal.
    • A majority accepted the exhaustion doctrine and held that the relevant modifications did not amount to making a new product; they were modifications of products that had already been sold.

Practical impact

Practical read

  • A patent owner may not control every downstream use after first sale.
  • Businesses refurbishing, repairing, importing or reselling patented products need to understand the exhaustion line.

Useful next steps

  • Patent rights can be exhausted after first sale, but modifications still need legal analysis.
  • Repair and refurbishment businesses should check patent and product-safety risk together.
  • Importers need to understand overseas acquisition rights and Australian patent rights.
  • Check whether products being refurbished are covered by Australian patents.
  • Assess whether modifications are repair or making a new product.

Practical read

Calidad is a refurbishment case with real commercial bite. A business model was built around collecting used printer cartridges, modifying them for reuse and importing them for resale. Seiko said that went beyond ordinary ownership rights and infringed patent rights.

The High Court accepted that patent rights in a product can be exhausted on first sale, but that does not make every modification safe. The practical question for refurbishers, importers and circular-economy businesses is whether they are prolonging the life of an existing product or making a new embodiment of the patented invention.

Checks to run

Key points

  • Check whether products being refurbished are covered by Australian patents.
  • Assess whether modifications are repair or making a new product.
  • Review importation rights before buying overseas stock.
  • Separate patent risk from trade mark, safety, warranty and consumer law risk.

Key takeaways

  • Patent rights can be exhausted after first sale, but modifications still need legal analysis.
  • Repair and refurbishment businesses should check patent and product-safety risk together.
  • Importers need to understand overseas acquisition rights and Australian patent rights.

Related topics

IP & Brand ProtectionFood & Product Compliance

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