RU 2808280. Vikhareva E.V., Mishenina I.I., Gapechkina E.D., Rychkova M.I., Tyumina E.A. Method for producing a phytostimulant based on paracetamol biodegradation products and its use. Effective date for property rights: 31.08.2022. Date of filing: 31.08.2022. Registered with the Public Register for Inventions 28.11.2023. Date of publication: 28.11.2023. Bull. 34.