1. Generally, barcodes can only be applied after trademark registration. As long as the trademark is not an imitation of the existing brand, it can be used after it is basically accepted by the trademark office;

2. The electrical products below the first-line brands sold in China basically did not apply for bar codes, and they were all made up by themselves. Because non-brand electrical appliances will not enter the supermarket, there is no need to apply;

3. Trademarks can be applied in China. When a brand is made into a well-known trademark, it can be protected by international law and does not need to be applied abroad;

4. There is no need to register the company name;

There are basically no other documents except trademarks in China.