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Precision when your clients need it most

Invalidity Search


The patent and technical literature searches your clients need must be customized to meet your exact legal and technical requirements, must be delivered within your desired time frame, and must leave no stone unturned in the pursuit of information that helps them make better IP decisions.

Our invalidity searches help you and your clients when the stakes are highest:

  • Supporting the strongest argument for invalidating a patent when you’re working with the defendant in an infringement lawsuit
  • Giving your clients the leverage they need in negotiations by assessing the strength of one or more patents in support of a possible licensing deal or acquisition
  • Clearing the competitive playing field by invalidating their competitors’ patents using various post-grant procedures at patent offices

Our expert searchers routinely use 30+ language- and technology-specific databases to provide the best possible support for your litigation or enforcement efforts.

Our approach entails:

  • Identifying target claims and specific limitations of interest, critical date, and other parameters that are key to developing a precise search strategy based on an in-depth scoping discussion
  • Actively dissecting target claims to develop an in-depth understanding of the specific limitations under focus
  • Searching electronic and manual data sources for non-patent technical literature, including non-traditional resources such as product literature (manuals and repair guides) and industry standards documents, as well as hard-copy collections at libraries around the world
  • Applying our in-depth expertise in the implications of patent law or search objectives on search strategy:
    • Challenging patent validity in differing types of post-grant proceedings in multiple jurisdictions
    • Incorporating the impact of patent law changes around the globe
    • Developing search strategies designed to support your case strategy


Technical expertise


With a highly experienced team of 170 in-house, full-time research professionals, we ensure your search has the right expertise backing it up. Learn more

Budgetary control


Projects tailored to your budgetary imperatives – so you and your clients get exactly what you want and need.

Global scope


Our search capability covers every major jurisdiction around the globe.



Clear, straightforward pricing and free, no-obligation quotes.




We put our internally trained and highly skilled team of more than 170 experienced research professionals at your service. This includes attorneys, former patent examiners and patent agents, as well as former practicing engineers and scientists.



We combine the art and science of searching to maximize value for you and your firm’s clients, based on decades of experience in formulating search strategies. By creatively harnessing the power of multiple search engines, databases and libraries we can deliver tailored results that meet every requirement. We have particular expertise in leveraging non-traditional sources of technical and product literature to find the critical prior art needed for invalidity searches.



Our Reference Desk provides access to extensive resources for patent and non-patent literature. If the documents exist, our librarians and technical literature experts will find them.



Our specialist search managers provide consultative, responsive and high-touch services. We collaborate with you locally while coordinating your project globally from the top patenting jurisdictions worldwide.



Our analyst team includes native speakers in multiple languages, including five major languages across all technologies. This allows us to perform native language searching, both online and on the ground, which can be particularly critical for invalidity searches because non-English sources anywhere in the world may provide the critical prior art needed to make your case.



We provide results in the format of your choice, from full reports to matrices. Every deliverable is designed to speed up the review process, enabling you to make fast and accurate decisions based on high-quality information.



Find out more about Patent Search

See our detailed product sheet.



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