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in addition to the ayahuasca and quinoa cases cited above, the turmeric powder case should also be mentioned, in which the indian council of scientific and industrial research succeeded in 1997 in convincing the united states patent and trademark office to revoke a patent granted to two united states scientists on the use of turmeric powder as a healing agent.
44在该案中，印度科学和工业研究理事会在1997年成功地说服了美国专利和商标局，美国专利和商标局同意撤销已授予美国两名科学家的一项利用姜黄粉作为治疗剂的专利。