When searching for patents, you can use a variety of strategies, including:
Brainstorm Terms
Write down a description of your invention, and consider synonyms for the terms you use. Avoid overly broad terms like "device" or "process".
Keyword Search
Use a keyword search to find patents related to your invention. You can start with a broad search and then narrow it down by adding more details.
Search by Patent Number
You can search for a patent by its number or application number in a database.
Classification Searching
Use the classification system to find patents that are most relevant to your invention. You can browse the classification hierarchy to find broader and narrower codes.
Search in Multiple Places You can search in multiple places, including:
Derwent Innovations Index:
SciFinder-n:
Espacenet: The European Patent Office's worldwide patent publication database
Google Patents: A good place to do keyword searching
Patent Public Search: A tool for conducting keyword searches
Limit your Search
You can limit your search to patents filed in the last 20 years, or in countries where you'll be working on your invention.
Collaborate with Your Librarian
You can work with your Duke University Librarian who will have working knowledge in IP and your field.
