Invalidity/Validity Search

Invalidity/Validity Search

An invalidity/validity search is an exhaustive, date-limited prior art search conducted against the claims of a patent to verify its validity or render it invalid by uncovering relevant art filed before its earliest priority date. An invalidity search is carried out to dispute a patent's validity through pre- or post-grant opposition methods or as a defense in patent infringement litigation. It's also useful for assessing a patent's claims' strengths and weaknesses during licensing or acquisition discussions.

Our Process

During an invalidity/validity search, our experts go through the file history of the patent in question and conduct a prior art search that takes into consideration the arguments raised by the examiner and the applicant/attorney. We thoroughly examine the patent's specific claims requiring validation, focus on the patent’s priority date, and identify prior art omitted from the patent documentation. Utilizing the outcomes of our comprehensive prior art search and leveraging our experts' deep understanding of patent legislation, we challenge the originality or obviousness of the patent's claims. Our team conducts exhaustive searches to identify grounds for patent invalidation, such as prior public knowledge, use, sale, or publication before the patent's priority date. We meticulously examine all potential grounds to ensure comprehensive coverage. Upon completing our search, we deliver a detailed, user-friendly report that aligns prior art with the patent's claims, proving crucial in challenging patent infringement allegations and strengthening our clients' positions in litigation or negotiations.

Contact Us

For over 25 years, the experts at Legal Advantage LLC have been providing legal support services for clients across the US and Canada. To learn more about patent invalidity/validity searches and the other IP support services we offer, contact us today.

Invalidity/Validity Search

Invalidity/Validity Search
Invalidity/Validity Search

“Our analysts and managers diligently and methodically determine the essential concepts for your search needs.”

Why Choose Us?

Our team boasts over 500 years of collective experience, featuring PhDs, Masters, Engineers, and former patent professionals.

Access to the world’s leading 250+ patent and non-patent literature databases.

Top IP support services company serving a majority of the Am Law 500 firms and Fortune 500 companies.

Our search experts masterfully combine patent classes, subclasses, and keywords to yield relevant results.

Our reports, tailored to client preferences, highlight only relevant prior art, ensuring quick, accurate decision-making. Each report details searched concepts, keywords, and classification codes.

We tailor the report to the way you like to see it. Our clients’ preferences often vary from a full report to just the list of identified references on a single page.

Our process includes a rigorous multi-tier quality check at every stage, ensuring unmatched precision in strategy, relevance, and reporting outcomes.

Fast turnaround. Our team is trained to delve deep with speed—no haste.

Our analysts meticulously assess both direct and analogous prior arts, ensuring a comprehensive evaluation of the technology's functionality and related innovations.

We search the art by amalgamating science, law, and logic. Our analysts and managers are diligent and methodical when determining which concepts are vital and which are trivial in the search request.

Our top analysts in specific sub-technologies conduct your searches, ensuring expertise rather than assigning to the first available generalist.

Our search experts promptly engage with you for critical insights during internal discussions, ensuring timely consultation on essential concepts.

We have conducted 13K+ searches to date. Request Your Free Quote Now.