辉瑞2005 年向这两家公司提出起诉．中国地方制药公司已经加大了对专利的挑战，希望获准出售各种药品的复制品。
Pfizer sued the two companies in 2005. Local drug makers have stepped up patent challenges in hopes of being allowed to market generic copies of various drugs.
中国国家媒体报导，美国辉瑞制药公司在中国起诉两家公司复制辉瑞受欢迎的治疗男性阳萎的“威而钢”产品的案子中胜诉。
Chinese state media say U. S. drug maker Pfizer has won a court case in China against two companies which were copying its immensely popular male impotency treatment, Viagra.
在中国开展药物研究的其他主要制药公司包括诺华，阿斯利康，辉瑞，葛兰素史克和罗氏。
Other major drug companies with a research presence in China include Novartis AG, AstraZeneca Plc, Pfizer inc., GlaxoSmithKline and Roche Holding AG.
但是，包括辉瑞制药在内的外国公司则多次呼吁中国加强对专利、版权和商标的保护。
But foreign companies including Pfizer have repeatedly called on China to tighten patent protections, Copyrights and trademarks.
但是，包括辉瑞制药在内的外国公司则多次呼吁中国加强对专利、版权和商标的保护。
But foreign companies including Pfizer have repeatedly called on China to tighten patent protections, Copyrights and trademarks.
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