In-house IP teams
Identify licensing opportunities
Evidence of Use Search
Enhance your patent licensing and monetization strategies by identifying infringing products and services in the market
Who this is for
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.
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Patent search projects completed
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Projects delivered to Am Law 100 firms
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Years of IP indesutry experience
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Searches completed
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Patent search projects completed
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Projects delivered to Am Law 100 firms
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Years of IP industry experience
USE CASES
When do I need an evidence-of-use search?
Our evidence-of-use search services have helped our clients in these various aspects of their IP strategy.
Patent Enforcement & Litigation
Identify products that practice patented technology and strengthen infringement assertions with detailed patent-to-product claim charts.
Our Patent Infringement Search services are also enhanced by our Product Teardown capabilities.
PatentLicensing & Monetization
Support licensing discussions with evidence demonstrating how patented technology is used in commercial products and services.
Patent Due Diligence & M&A
Assess patent value and commercial relevance by identifying evidence of adoption, implementation, and market use of patented inventions.
Patent Portfolio Evaluation
Prioritize high-value patents by determining which assets have significant market adoption and most suitable for enforcement or licensing.
Why Parola Analytics
Actionable evidence, trusted expertise.
Our Evidence of Use searches combine technical expertise, U.S. patent insight, and rigorous claims analysis to help you identify, evaluate, and support potential infringement and licensing opportunities.
Expert-led projects
U.S.-registered patent attorneys and patent agents oversee each project, ensuring accurate claim interpretation and alignment with U.S. patent law considerations.
Comprehensive search
We investigate a wide range of public and technical sources to identify products, processes, and implementations that may practice patented technology.
Clear Patent Claim-to-Product Mapping
Receive detailed Evidence of Use claim charts that clearly map patent claims to product features, making findings easier to evaluate and communicate.
Dig Deeper: Product Teardown Capabilities
When documentation alone is insufficient, our hardware, software, firmware, and product teardown capabilities help uncover additional evidence of technology implementation.
What our clients are saying
Trusted by patent experts
“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
"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
“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
“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
“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
“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
“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
“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
“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
“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
“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
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
Parola Analytics delivered an exceptionally thorough and well-organized work product, tailored to the specific needs and requirements of my project. It is the best prior art search I have received across my nine issued patents.
Mike Weaver
Intrinsic Marks
Dig Deeper
Evidence of Use Resources
USE CASES
Patent Infringement Validation
Explore how Evidence of Use searches support patent enforcement, licensing, due diligence, and competitive intelligence initiatives.
SERVICE
Product Teardown
Discover how product teardowns uncover technical details that may not be apparent from public documentation alone.
Service
Software & Firmware Reverse Engineering
Learn how software and firmware analysis can reveal technology implementation and provide deeper evidence for patent investigations
Guides
Teardown Strategies in Hardware IP Disputes
Understand the product teardown process, common use cases, and how teardown findings can support IP and competitive intelligence efforts.
FREQUENTLY ASKED QUESTIONS
Evidence of Use / Infringement Search FAQs
What is an Evidence of Use search?
An EoU search identifies products, services or processes (such as methods of manufacture) that may be using patented technologies. In a standard Evidence of Use Search, a claims chart is presented, wherein the claims of the subject patent are mapped against the features of the product, service, or process.
This type of search is widely used patent licensing and monetization, patent enforcement and litigation, patent valuation (in order to show commercial value or the level of market adoption).
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 Search 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.
Get started.
Get experts to do your research.
Book a free consultation or send us a message.
Book a free consultation or send us a message.