To check appearance patents, you can follow the following steps:

1.**Official website of the Patent Office:

Visit the patent office of your country or region Official website. On the website, there is usually a dedicated search tool where you can enter relevant keywords, applicant information or patent number to query.

2.**Patent database:

Use professional patent databases, such as Google Patent, Espacenet (European Patent Database), USPTO (United States Patent and Trademark Office), etc. These databases provide patent information on a global scale, and you can search using keywords, classification numbers, applicants and other information.

3.**International Patent Organization (WIPO):

If you want to inquire about appearance patents internationally, you can visit the official website of the International Patent Organization (WIPO). They provide a Global Design Database (GlobalDesignDatabase) where you can query.

4.**Professional patent search service:

If you are not familiar with patent search operations, you can consider using professional patent search services. Some professional companies or institutions provide professional patent search services to help you find the appearance patent information you need.

5.**Consult professionals:

If you don’t know much about patent searches, you can consult a professional patent attorney or search service agency. They have the expertise to help you conduct an accurate design patent search.

When making a query, you can use design-related keywords, applicant name, patent number and other information to narrow the scope of the query to find the design patent you are interested in.

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