In the world of invention and innovation, securing a patent is akin to staking a claim on a piece of valuable, uncharted territory. But before planting your flag, it’s essential to ensure the land is indeed unclaimed. This is where the concept of a prior art search comes into play—a fundamental step in the patent application process that every inventor must understand and undertake with diligence.

What is a Prior Art Search?

A prior art search involves systematically examining existing patents, patent applications, and other public disclosures (collectively known as “prior art”) to determine if your invention is truly novel and non-obvious. Prior art is not limited to patents alone; it encompasses any publicly available information, including academic papers, product manuals, websites, and even existing products on the market.

The objective of this search is twofold: to assess the likelihood of obtaining a patent for your invention and to help define the scope of your patent claims to ensure they are both novel and non-obvious in light of the prior art.

Why is a Prior Art Search Essential?

  • Avoiding Infringement: One of the primary reasons to conduct a prior art search is to avoid the costly mistake of infringing on someone else’s patent. Discovering late in the development or commercialization process that your product violates an existing patent can lead to expensive litigation or the need to pay for licensing fees.
  • Strengthening Your Patent Application: A thorough understanding of the prior art related to your invention allows you to draft a more robust patent application. By clearly distinguishing your invention from the prior art, you can tailor your claims to highlight the novel aspects of your invention, thereby increasing the likelihood of your patent being granted.
  • Saving Time and Resources: Investing time and resources in a prior art search early can save you from the disappointment and financial loss of pursuing a patent application destined for rejection. Knowing the landscape of existing inventions and patents can help you make informed decisions about whether to proceed with the patenting process or go back to the drawing board.

How to Conduct a Prior Art Search

Conducting a prior art search involves several steps:

  • Identify Keywords and Classifications: Start by identifying keywords related to your invention and relevant patent classifications. Patent databases use specific classifications to organize patents, making them easier to search.
  • Utilize Multiple Databases: Search through multiple databases, including the United States Patent and Trademark Office (USPTO), European Patent Office (EPO), and World Intellectual Property Organization (WIPO), as well as non-patent literature databases. 
  • Analyze and Compare: Carefully analyze the found documents to determine their relevance to your invention. Pay particular attention to the claims section of patents, as this defines the scope of the patent’s protection.
  • Document Your Findings: Keep a detailed record of your search process and the prior art you discover. This documentation can be invaluable during the patent application process.  Further, it is typically required to disclose your prior art search filings to the patent office when filing your patent application.


A prior art search is not just a preliminary step in the patenting process; it’s a strategic tool that can save inventors time, money, and heartache. By thoroughly investigating the existing landscape of inventions and patents, you can better position your invention for success in the crowded marketplace of ideas. While conducting a prior art search can be complex, the insights gained are invaluable in making informed decisions about protecting and commercializing your invention. Remember, in the quest for innovation, knowledge of what came before is just as important as the vision for what could be.

Michael Jones is the managing member at Jones Intellectual Property. His practice specializes in all aspects of intellectual property, including patent, trademark, and copyright law. He can be reached at
Michael Jones Michael Jones is the founder and managing member of Jones Intellectual Property, whose mission is to provide his clients with personalized, effective legal solutions. Michael has focused on creating, protecting, and advocating for his clients’ intellectual property rights throughout his career. View Bio