Is there a patent restriction on washing machines?

Yes According to official website's inquiry, Guangdong Household Electrical Appliances Industry Association announced the evaluation results of the 23rd China Patent Award on April 15, 2022, and all kinds of washing machine brands won the China Patent Award, which performed well in four indicators, such as patent quality, advanced technology/design points and concept expression, application and protection measures and their effectiveness, social benefits and development prospects. Winners include Wuxi Little Swan Electric Appliance Co., Ltd. and Qingdao Haier Drum Washing Machine Co., Ltd. ... For washing machines, the diameter of the inner barrel and the shape of the pulsator and the inner barrel are more important. In fact, due to the limitation of patents, the differences between brands are mainly reflected in these aspects.