Legal analysis: The 11 categories of trademarks include lighting, heating, steam generation, cooking, refrigeration, drying, ventilation, water supply and sanitary devices. This class includes in particular: air-conditioning units; electric or non-electric bed warmers, hot water bottles, long-handled bed warmers; non-medical electric heating pads and blankets: electric kettles; electric cooking appliances. In particular, this class does not include: apparatus for producing steam; electrically heated clothing.

Legal basis: "Trademark Law of the People's Republic of China"

Article 1 is to strengthen trademark management, protect exclusive rights to trademarks, and encourage producers and operators to guarantee goods and services. This law is specially formulated to protect the quality of trademarks, safeguard the reputation of trademarks, protect the interests of consumers, producers and operators, and promote the development of the socialist market economy.

Article 2 The Trademark Office of the Industrial and Commercial Administration Department of the State Council is responsible for the registration and management of trademarks nationwide. The industrial and commercial administration department of the State Council has established a Trademark Review and Adjudication Committee to handle trademark disputes.

Article 3 Trademarks approved and registered by the Trademark Office are registered trademarks, including commodity trademarks, service marks, collective trademarks, and certification marks; the trademark registrant enjoys the exclusive right to use the trademark and is protected by law.