Q: How do I check if the product has patent such as electric kettle sold by two different companies?

A: To check if a product like an electric kettle is patented, especially when it's sold by two different companies, you can follow these steps:

Patent Number Search: If the product packaging or documentation mentions a patent number, you can use this to check the patent status. Patent numbers are often listed on the product itself, in the user manual, or on the packaging.

USPTO Database Search: In the United States, patents are registered with the United States Patent and Trademark Office (USPTO). You can search their online database, which is accessible at USPTO's website. The database allows you to search by various criteria including patent number, inventor name, assignee (company), and keywords.

Keyword Search: If you don't have a patent number, conduct a keyword search using the product's description, like "electric kettle," along with any unique features or technologies that might be patented. Include the company names in your search to narrow down the results.

International Patents: If the product is sold internationally, it may be patented in multiple countries. For international patents, you can search the World Intellectual Property Organization (WIPO) database or the respective national patent office's database of the countries where the product is sold.

Consult a Professional: Patent searches can be complex, especially if you're unfamiliar with the process or technical jargon. If you need a thorough search or legal advice, consider consulting a patent attorney or a professional patent searcher.

Compare Patents: If two companies are selling a similar electric kettle, and both claim to have patents, compare the patents to see if they cover different aspects of the product. Sometimes, multiple patents can exist for different features of the same type of product.

Remember, patents are legal documents, and their interpretation can sometimes be challenging. If you are looking into this for legal or business purposes, getting professional advice is often the best course of action.