Information engineering does not belong to the classification of trademarks, but is a field involving information technology and engineering. A trademark is a sign used to identify and distinguish the source of goods or services and belongs to the category of intellectual property rights.

The classification of trademarks usually follows the international classification system, namely the Nice Classification. It divides goods and services into 45 categories, of which categories 1 to 34 apply to goods and categories 35 to 45 apply to services. Each category covers a range of goods or services.

If you want to register a trademark, you need to first determine the category your trademark belongs to. For the field of information engineering, you may need to further determine the specific technology or service fields involved, and then select the appropriate category according to the Nice classification system. Depending on the specific circumstances, information engineering may cover multiple categories, such as computer software (category 9), scientific and technological services (category 42), etc.

It is recommended to consult a professional trademark agency or intellectual property lawyer. They will help you determine the appropriate trademark category based on your specific situation, and provide professional guidance and support during the trademark registration process.