Take the United States as an example.

1. Power of attorney for trademark registration. The applicant must sign and seal the power of attorney. Applicant's qualification certification materials: Must be a natural person or legal person. Natural persons also need to attach a copy of their passport or ID card, and legal persons also need to attach a copy of their business license. (Chinese and English name and address)

2. Clear trademark image (1 copy), clear trademark image, and electronic version of the LOGO (JPG format). Note: If the trademark is in color, please specify the color. The specified color will be used in the future. If the trademark is in black and white, any color can be used in the future.

3. Documents proving the trademark registration in your country, the earliest date of use in the United States and evidence. Submit a statement of use, stating that the trademark continues to be used in commerce on designated goods, or that the registrant does not use the trademark for other special reasons, and that such non-use does not mean abandonment of the trademark. Otherwise, the USPTO will revoke the trademark registration.

Trademark authorization refers to an act in which the trademark owner voluntarily licenses the registered trademark rights to others for use. It is also commonly known as trademark licensing. According to Article 43 of the Trademark Law and Article 69 of the "Regulations for the Implementation of the Trademark Law", when licensing others to use its registered trademark, the licensor shall file and submit filing materials to the Trademark Office within the validity period of the license contract.