How is an EoU search different from a patent infringement analysis or opinion?

An EoU search or patent infringement search provides publicly available evidence of potential use (technical disclosures, product manuals, standards documents, and in some cases a complete product teardown). An EoU or patent infringement search is a preliminary step before a legal opinion on infringement is given (by a patent attorney). These services are important to consider before pursuing patent enforcement or licensing.

How long does an EoU search take?

The timeline depends on the complexity of the patent (e.g. the number of claims, the complexity of the technology) and the number of products or companies being analyzed (i.e. the scope or the jurisdictions covered). Our standard timeline for our Evidence of Use search service is 2–4 weeks. Complex standards-related patents or large patent portfolios may require more time.

What is included in an Evidence of Use Search report?

Our Evidence of Use (EoU) search report typically includes the following elements. These standard inclusions can be modified based on your requirements. Claim charts mapping patent claims to product, service, or process features Copies of supporting evidence such as product manuals, standards, and other public technical disclosures In the case of a (physical) product teardown, we provide high resolution imaging of internal components, chemical or material analysis, and more. A structured format ready for patent licensing, litigation, and monetization.

How much does an Evidence of Use Seaarch cost?

The cost of an Evidence of Use Search depends on the complexity of the patent (number of claims to be matched, complexity of the technology itself) and the scope of the search (i.e. the number of jurisdictions). In order to get a proper quote, send us a message along with the subject patent, the claims to be matched, and the jurisdictions (countries or regions) to be covered.

Evidence of Use Search

Enhance your patent licensing and monetization strategies by identifying infringing products and services in the market

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What is an evidence of use search?

An evidence of use (EOU) search seeks to identify evidence of the commercial use of a particular technology or patented invention.

It is also called a patent infringement search or “patent-to-product mapping” as the process involves matching patent claims with specific features or components in commercial products or services.

The process effectively identifies potential patent infringement or areas for licensing opportunities.

Why conduct an evidence of use search?

Our evidence-of-use search services have helped our clients in these various aspects of their IP strategy.

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Patent enforcement and litigation

Strengthen position in patent litigation by demonstrating clear Evidence of Use (EoU) through our patent-to-product claim charts.

Our Patent Infringement Search services are also enhanced by our Product Teardown capabilities.

Patent licensing and monetization

Maximize the value of your patent portfolio. Our expert Evidence of Use Search and claims mapping charts provide you with strong proof needed to support patent licensing and ensure sound royalty agreements. Read our Evidence of Use client success story.

Patent Due Diligence / Mergers & Acquisitions

Gain better patent valuation and secure a better position in licensing and sale agreements. We have helped patent owners demonstrate level of use and market adoption of their innovations. Investors use our EoU searches for patent due diligence activities for M&A transactions.

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Why Parola Analytics

Expert-led Research

A U.S.-registered patent attorney oversees your Evidence of Use Search for better claim interpretation and deeper understanding of U.S. patent law

Comprehensive Search

Our EoU searches scour through various sources to ensure all potential infringing products or processes are identified offering actionable market intelligence

Clear Infringement Mapping

EoU Claims Charts or Patent Claims-to-Product Mapping Charts that provide you with a detailed, clear visual presentation of potential patent infringement

Flexibility & Scalability

Adaptable to changing needs throughout the patent litigation process, accommodating changes from additional accused products to revised claim interpretations.

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Client Success Story

Helping a telco giant monetize their IP

Find out how our SEP analysis and evidence of use searches backed this telco giants patent licensing initiatives

What our clients are saying

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“The first search Parola Analytics, Inc. performed for us provided the key reference supporting our invalidity position on a patent we were evaluating.”

Sean M. Dean, Ph.D.

Fish & Richardson

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“Vincent and his team at Parola are excellent at locating prior art. We have worked with Parola on two matters, and both times, Parola delivered outstanding results. Parola’s highly-relevant search results and reports demonstrated a thorough understanding of the patent claims.”

Daniel Kiang

Knobbe Martens

“Vincent Violago and his excellent team at Parola Analytics provide high quality, detailed, prior art search results with minimal oversight and handholding. These guys are highly educated and experienced in their field and work together with great efficiency. The work product is top-notch, and they are always available for follow up, including detailed discussions of the report and additional pinpoint searches based on the results. I highly recommend Vincent and his team.”

James A. “Tripp” Fussell III

Mayer Brown

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"Parola analysts uncovered prior art that even opposing counsel’s team could not during litigation. The quality of their work and deeper understanding of the subject matter were instrumental to the case that we eventually won.”

Saqib J. Siddiqui

Mayer Brown

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“The team at Parola Analytics did an excellent job in providing us with the highest-quality prior art research service.

The team’s search report highlighted the best prior art references with an easy-to-understand format. In short, the team proved itself.”

Ryan Phelan

Marshall, Gerstein & Borun LLP

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“I recently engaged Parola Analytics to conduct a prior art search on a difficult US patent that had already stymied another search firm that delivered two unusable references.

Parola found four much better references in two weeks that demonstrated a deeper understanding of the search and an effective selection of the best references.

I highly recommend Parola Analytics.”

Barry Shelton

Shelton Coburn

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“Parola Analytics is our trusted partner for prior art search contests on PATROLL, Unified Patent’s crowdsourcing platform.

With their expertise in prior art searching, Vincent and his team at Parola Analytics are valuable partners in reviewing prior art submissions to our contests.

Parola Analytics provides broad knowledge across various subject-matters and offers competitive pricing.

They are easy to work with and are responsive to our needs.”

Sam Jaffna

Unified Patents

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“In just weeks, our investments in our relationship with Parola Analytics started to pay handsome dividends. Parola Analytics identified a patent filed by researchers at Yale that showed promise as a vaccine against malaria. Our article, authored by Monisha Ravisetti, was publicized in hundreds of newspapers and magazines worldwide and quoted thousands of times on social media. Parola’s flexibility proved invaluable for a startup company like ours, and the reasonable fee structures allowed us to invest in the relationship with confidence.

Marius Meland

Founder, Law360

CEO and Founder, Fastinform

“Parola Analytics has consistently provided excellent search results coupled with an easy to navigate and detailed search report. Parola’s responsiveness and communication are exceptional. I highly recommend Parola.”

Chris Hadley

Jones Waldo

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“Parola Analytics is an outstanding resource for our boutique intellectual property firm. Patentability searches are the first step for new patent clients. Vincent and his team take care of this crucial step, and provide us with high-quality and comprehensive search reports. The search reports provide our clients with a clear visual representation of the state-of-the-art and make our counseling even more impactful. Our patent practice is enhanced by Parola Analytics’ search capabilities, and our favorite find is Parola Analytics.”

Justin H. Cross

HamiltonCross LLP

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“Parola Analytics was able to quickly provide us with a key prior art reference despite other search vendors failing to find anything useful. Parola’s thorough search report also provided detailed analysis and allowed us to easily assess the viability of the references and efficiently create invalidity contentions. Would highly recommend.”

Luc Dahlin

Goodwin Procter

A man with short black hair, wearing a dark suit, white shirt, and tie, smiles at the camera against a plain gray background—ready to assist with your patent and prior art search needs.

“It was an absolute pleasure working with Parola Analytics. Vincent Violago is very responsive and professional. He answers all your questions and ensures the right person does the search. The patentability report provided is very visually pleasing and easy to follow.

The searcher (who is a PhD chemist and registered US Patent Agent) took great care to understand the claim language of a biotech invention prior to doing the search. A very thorough search was done in a timely and efficient manner. I highly recommend Parola Analytics for patentability searches.”

Imtiaz Billah

Torrey Pines Law Group PC

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“Parola Analytics is the perfect fit for us, start-ups. They offered us the flexibility we needed for our unique needs. We received high quality results fast at competitive prices.”

Alfredo Carranza

i6 Technology

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For small IP firms looking for a reliable patent research partner, Parola is the perfect choice. Parola Analytics has consistently delivered high-quality results in the various patentability and design patentability projects we have worked on. They have a very collaborative and hands-on approach to each project. The researchers have vast experience and IP knowledge which allows me to get results well-aligned with my specifications.

Tom Tatonetti

Tatonetti IP

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