A patent search is a process used to find existing patents related to a specific invention or idea. This search helps inventors and businesses determine if their invention is unique or if similar inventions already exist. By reviewing patents, they can avoid potential legal issues and assess the viability of their ideas. Patent searches can be conducted through various databases, including the United States Patent and Trademark Office (USPTO) and international patent offices. These searches typically involve keywords, classifications, and inventor names to locate relevant patents. A thorough search is essential for making informed decisions about pursuing a patent application.