How to Search for Patents
The way you search for patent information will depend on your purposes and what you know already. Your search can be centred on the appropriate technology, the markets you are interested in, or possibly what your competitors have preserved.
To make searching more comfortable, every patent is divided by it’s subject matter. Patent classification schemes have a tree-like structure, and all level of classification has a different reference code. Inventions are classified into technologies Example: – “Engineering” has been divided into classes like mechanical engineering and then into subclasses like machines or equipment. Patent classification is a hierarchical system that incorporates a patent according to the state of technology it falls into. It performs managing and searching patents that fall into the identical technical group or sub-group.
There are various patent classifications like the International Patent Classification, Cooperative Patent Classification (CPC), etc.
The 2 main group schemes used by patent offices globally are:
- The International Patent Classification includes about 70,000 different IPC codes. You can survey the class headings and do keyword searches on the WIPO website IPC page. We use this type of system as it’s more common.
- The Cooperative Patent Classification is an expansion of the IPC. It’s together controlled by the European Patent Office and the US Trademark and Patent Office.
Searching using classification codes
Classification codes can be a helpful tool when examining inventions. Keyword searches alone can lead to very large numbers of results. Using classification codes collectively with keyword searches can assist you to get focused results.
Usually, searchers will make a list of keywords that define the invention and recognize appropriate classification codes. Top-level classifications are helpful when the same term can be used to define an invention in varying technoloical fields. Lower order classifications can be helpful to narrow a search where a huge number of documents are reclaimed.