Are disposable paper chopsticks not filed in China National Intellectual Property Administration? Why can't patent search be retrieved?

1. The National Knowledge Bureau does not check the environmental sanitation of chopsticks.

At present, the one-time price is quite cheap. Your paper chopsticks should be waterproof, oil-proof, high temperature resistant, not easy to fold, anti-bending, non-toxic, and cheaper than wooden chopsticks and bamboo chopsticks, so it is difficult to control the cost, so it is generally difficult to promote.

Your paper is made of wood or bamboo. Making paper first, then chopsticks, is one more process than others. If it is recycled, impurities such as lead and heavy metals need to be removed, and the cost should be increased.