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Patent Invalidation & Defence

A patent right is not unassailable: many patents face the risk of invalidation or challenge, and a patentee may have to respond actively in invalidation proceedings to defend the innovation.

Patent filings are handled through an affiliated patent agency.

Get a quote
  • File online
  • Quote online
  • Track progress online

Our patent invalidation and defence service covers every stage, from the initial analysis of the case to following the proceedings through.

When you need it

  • You need to request the invalidation of someone else’s patent
  • Your own patent is the subject of an invalidation request and you need to defend it
  • A patent dispute calls for an overall litigation strategy

What you get

  • In-depth study of the patent concerned and the related technical literature
  • Sound grounds for invalidation, or a strong defence against the other side’s request
  • An overall litigation strategy drawing on judicial practice and industry experience

How it works

  1. Step 1

    Initial analysis of the case

    In-depth study of the patent concerned and the related technical literature.

  2. Step 2

    Grounds for invalidation or defence

    Help the client establish sound grounds for invalidation, or prepare a strong defence against the other side’s request.

  3. Step 3

    Overall litigation strategy

    Where necessary, help the client set an overall litigation strategy drawing on judicial practice and industry experience.

Get a quote
  • File online
  • Quote online
  • Track progress online

What to prepare

  • The number of the patent concerned and the country or region
  • Your situation: requesting invalidation, or defending against a request
  • The official deadline (if known)
  • The evidence you already have, or the other side’s invalidation request (can be uploaded after signing in)

Fees and timing

Submit a quote request online; an agent assesses it and quotes. You pay only after confirming the quote.

The fee depends on the complexity of the case and the country or region.

The time required is given together with the quote.

FAQs

Got questions? We’ve got answers.

These are general guidelines; official rules and case-specific assessments apply.

Can a patent still be invalidated after grant?
A patent right is not unassailable. In practice, because technical backgrounds are complex and prior-art evidence is varied, many patents face the risk of invalidation or challenge.
What should I do if invalidation of my patent is requested?
A patentee may have to respond actively in invalidation proceedings to defend the innovation. We prepare a strong defence against the other side’s request.
What does the service include?
Every stage, from the initial analysis of the case to following the proceedings through. Patent filings are handled through an affiliated patent agency.

Related services

Related countries and regions

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Notice: the services described on this page are carried out by locally licensed partner firms; J&C is your point of contact and coordinates and delivers the work. Fees shown are estimates; official fees are those actually charged by the office and the final quote is confirmed by an agent. Examination times are set by each office and the outcome depends on official examination; we make no promise as to results. By submitting an order you agree that the information needed for the work is shared with the relevant partner firm (which may be outside your country). This page is general information, not legal advice.

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