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Build a Solid, Defensible Strategy in High-Stake Patent Disputes
Patents, publications, products, or anywhere else – If it exists, we will find it.
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250+ experts delivering results for the legal win.
Obtain detailed, actionable reports that offer clear pathways to invalidate patents, leading to faster, more favorable legal outcomes. With decades of experience & AI-Powered tools, uncover the most relevant prior art that dismantles weak patent assertions, providing a rock-solid defense strategy.

Real-Time Feedback Platform
In-house tool providing real-time access to project updates & findings, ensuring transparency & alignment with expectations. No need to wait for reports, as full control over the progress is maintained throughout the project.
Access AI-Driven Search Tools with Human Expertise
Avail a powerful combination of AI-driven search tools & human expertise for faster, more precise prior art discovery, especially in complex & niche areas that traditional methods might miss.
Explore Every Angle With In-Depth Patent Search
Exhaustive prior art search that reveals critical details often missed in typical searches. Benefit from a 360-degree analysis, ensuring no potential invalidity argument is overlooked, maximizing the chances of success.
Apply The Winning Formula
Experience GreyB’s Quality Results
Manual Search: Results That Help You Win.
Manual searches that surpass automated systems ensuring your legal strategy is supported with the most decisive evidence.
Global Advantage: Utilising Search Beyond Borders
Access multilingual expertise with patent searches across global databases, including native Asian languages, to lower legal risks.
Courtroom-Ready Reports: Indisputable Analysis
Present arguments with confidence using reports that are detailed and structured, minimizing the risk of analysis being challenged.
Timely Delivery: Fast, Accurate, and Reliable Results
Get patent search results within tight deadlines without compromising the quality.
When to use our Patent Invalidity Service?
Licensing Negotiations
Get killer prior art to create a winning argument against competitors. Utilize in-depth research that ensures successful prosecution.
Patent Invalidity Search
Invalidate opposing patents to undermine the plaintiff’s claims & shift the litigation in your favor.
Mergers and Acquisitions
Post-Grant Proceedings
Strengthen the defense in post-grant proceedings with a comprehensive invalidity search that identifies non-English & obscure prior art.
Major areas where we work
Talk to Experts With 1500+ Success Stories in 52+ Countries.
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Exceptional Team, Rewarding Results.

Also, I’m very happy to let you know that our client has won in the invitation case regarding CNXXX, in which the search report your team provided in 2019 helped a lot. We would like to take this opportunity to express our gratitude to you and your team members. Thanks again for your great help.
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GreyB’s team brought a refreshingly interactive approach to our 5G wireless invalidation project. I wasn’t used to it, but it worked well. Arjun kept things organized and on track. Preetika, the technical lead, was well-prepared with highlighted passages during our interim discussions. That made it easy to follow, even with limited prep time. GreyB clearly […]
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Arjun and his team delivered top-notch service on the invalidation search project. They kept us informed throughout the process and provided very useful interim reports with high quality technical discussions to achieve an excellent result. It was a seamless project from beginning to end.

1. The report and the additional helpful comments in your emails were easy to understand and read through. I did not need any extra clarifications. 2. I also appreciate the intermediate checks and sharing of the preliminary results from your end before the delivery of the final results – it was a good strategy to […]
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I’ve worked with GreyB for several years, mostly for patent invalidity searches, and recommend GreyB for high-quality, in-depth prior art searching. GreyB is very professional in their approach. Especially helpful is the way they share the updates on rolling basis and team’s ability to quickly adapt based on my feedback during these rolling updates. The […]
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I highly recommend Dhruva and GreyB for invalidity searches. Dhruva and his team have proven themselves to be highly competent in the many searches we have instructed them to undertake on the highly complex H.264 and H.265 video coding standards. They are undaunted by the complexity of the technology and I have the distinct impression […]
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Anupam has been key to the success of the development of the partnership between my company and GreyB. Anupam lives the values of GreyB toward their clients, high quality service and satisfaction for their clients v. growth of volume of work. Anupam and his team have brought to us decisive patent information in complex matters […]
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Thank you, it was my pleasure. Adam Seitz recently hired 12 separate search firms to work on a very large project with many patents and difficult subject matter, and the feedback from the team was very positive with respect to GreyB compared to many other good firms. In short, you earned the recommendation!
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Vik has coordinated several prior art search projects for us. He assembled a skilled, technical team with proficiency in the technology and was proactive throughout the process in reaching out to go over interim results for feedback to guide further searching. Their team was highly responsive and diligent, working on our expedited timeline, and remain […]
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It’s rare to come across anyone with the commitment to top-notch customer service that Vik and his team at GreyB have. From our first meeting to the end of every project, Vik and his team work tirelessly to tailor their prior art searches to deliver exactly what we’re looking for. I’ve been impressed not only […]
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Vik and his team at GreyB have done a number of prior art searches for my clients. I have been impressed across the board. The substantive results were top-notch, but what I appreciated just as much was the quality of communication with the GreyB team. They frequently provided interim search results, made themselves available for […]
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I have worked with Anupam and his GreyB team for years. They have done great patent search work for me, and their reports are excellent. Anupam is always super responsive and helpful in providing estimates and getting the work done and on time.
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Ce fut un réel plaisir de solliciter GreyB et Anupam Dixit pour des dossiers spécifiques. Je recommande ce cabinet et Anupam pour son professionnalisme et ses compétences en matière de Propriété Industrielle.
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I’ve worked with Anupam and GreyB on a number of occasions when I’ve needed top-notch prior art search, and will surely do so again in the future. Anupam is dedicated to client satisfaction and is constantly working to ensure that he and his team have exceeded expectations.
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Anupam and the GreyB team are an innovative and highly skilled group of intellectual property professionals. I have worked with them on matters ranging from analytics, to development to searching, and have consistently found that they have provided results when others couldn’t.
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I’ve worked with Vik and his team on a number of prior art search projects and have found his service outstanding. His teams have been staffed with technical folks in the relevant subject areas and I especially appreciate his willingness to hold interim discussions to direct and focus the search.
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I’ve worked with Vik on a number of occasions when I’ve needed a top-notch prior art search, and will surely do so again in the future. He is dedicated to client satisfaction, and is constantly working to ensure he and his teams have met and exceeded expectations.
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Also, I’m very happy to let you know that our client has won in the invitation case regarding CNXXX, in which the search report your team provided in 2019 helped a lot. We would like to take this opportunity to express our gratitude to you and your team members. Thanks again for your great help.
|
GreyB’s team brought a refreshingly interactive approach to our 5G wireless invalidation project. I wasn’t used to it, but it worked well. Arjun kept things organized and on track. Preetika, the technical lead, was well-prepared with highlighted passages during our interim discussions. That made it easy to follow, even with limited prep time. GreyB clearly […]
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Importance of Timeline in Locating Prior Art for General Features
