Patent searches can be carried out in the following ways:

1. Through patent databases: Many countries and regions have their own patent databases, such as the United States Patent and Trademark Office (USPTO) in the United States. ) database, China National Intellectual Property Administration (CNIPA) database, etc. You can visit the official websites of these databases and enter relevant keywords or patent numbers on their search pages to query.

2. Use the international patent database: The International Patent Database (WIPO) under the International Patent Cooperation Treaty (PCT) is a database that collects global patent documents. You can visit WIPO's official website and enter relevant keywords or patent numbers on its search page to search.

3. Through patent search engines: There are some specialized patent search engines, such as Google Patent Search, Espacenet, etc., which can provide more convenient and comprehensive patent query services. You can visit the websites of these search engines and enter keywords or patent numbers in their search boxes to query.

Please note that when conducting patent searches, you should provide accurate keywords or patent numbers as much as possible to obtain more precise search results. In addition, for queries involving professional fields, certain professional knowledge and understanding may be required to interpret and analyze the query results.

The above content is carefully compiled by Zhubajie.com. I hope it will be helpful to you.