A patent search is the first thing to do before applying for a patent. Its purpose is to establish how different your invention is from what already exists, by finding the information already in the public domain that relates to it.
There are several kinds of patent search. The one performed before filing is a patentability search: a search of existing patents and other available documents for the closest existing versions of the proposed invention. Those documents are collectively called prior art.
It matters because the patent office will evaluate exactly that. During examination it assesses the claims for novelty, inventive step and industrial application, and a patent is granted only if all three hold. Knowing the closest prior art in advance is what lets you identify your invention’s most differentiating features, and what lets you defend or justify an objection when one is raised.
- Search type
- Patentability
- Also called a prior art search
- Mandatory
- No
- But strongly advised before filing
- Turnaround
- 15 working days
- From your brief to the report
- Deliverable
- A written report
- Naming any prior art found
- Prior art includes
- Any public disclosure
- Web pages, articles and products, not only patents
- Before you share
- Sign an NDA
- A public invention can no longer be patented
- Not covered
- Freedom to operate
- That is a separate, different search
- If it already exists
- Improve and refile
- The report shows where the scope is