1. A combination of colors can be applied for as a trademark, but generally speaking, the combination of colors has poor distinctiveness and is easy to conflict with some other rights (such as the color layout of the national flag of some countries), so this type of application Very little.

2. The blue bottle cannot apply for a trademark. As a three-dimensional trademark, in terms of shape, its bottle body is determined by the nature of the product itself. In terms of color, it is a single blue. Both If they are not significant, the application will inevitably be rejected. Moreover, most three-dimensional trademarks can be protected through appearance patents.

3. There are 3 options, prosecution, negotiation and laissez-faire.

Finally, color alone cannot be patented, and the object of a design patent must be a physical object.