Does the subject want to ask "which national patent is used for Dr. Spine's organic fungi"? National invention patent. Dr. Ji's production method and equipment of organic auricularia auricula are independently developed, and have applied for a patent, which meets the national invention patent standards. Dr. Ji Brand Management Heilongjiang Co., Ltd. was established on March 2, 2022, and its headquarters is located in Daoli District, Harbin City, Heilongjiang Province.