GENEVA, Sept. 21 -- ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD. (Xunqiao, Linhai,Taizhou, Zhejiang 317024), 浙江华海药业股份有限公司 (中国浙江省台州市临海市汛桥开发区), LINHAI HUANAN CHEMICAL CO., LTD. (Duchuan Road, Duqiao, Linhai,Taizhou, Zhejiang 317016), 临海市华南化工有限公司 (中国浙江省台州市临海市杜桥杜川路) filed a patent application (PCT/CN2025/082157) for "PHENYLALANINE AMMONIA LYASE MUTANT AND USE THEREOF" on...