Home>News Center>China
       
 

Authorities: Viagra patent found invalid
By Guo Nei (China Daily)
Updated: 2004-07-09 00:23

The China State Intellectual Property Office (SIPO) has declared the patent for Viagra, the US-based pharmaceutical company Pfizer Inc's erectile dysfunction-correcting drug, as invalid in China because it doesn't conform with Article 26 of China's Patent Law.

Sources from SIPO confirmed this to China Daily Thursday without providing further comment.


China State Intellectual Property Office (SIPO) has declared the patent for Viagra as invalid in China because it doesn't conform with Article 26 of China's Patent Law. [newsphoto]

In accordance with the law, a company applying for a patent must provide a description of the drug "in a manner sufficiently clear and complete so as to enable a person skilled in the relevant field" to understand the drug.

The abstract shall state the main technical points of the invention or utility model."

In a statement concerning the ruling , Pfizer Inc said it will appeal the board's announcement on Viagra (active ingredient sildenafil).

The decision by SIPO's Patent Reexamination Board overturns the sildenafil-use patent issued in China in September 2001, the company said in the statement.

Pfizer saidthe patent remains in effect until the issue is resolved by a court.


Viagra tablets manufactured by Pfizer Pfizer Inc. [AFP file]
But according to Article 47 of China's Patent Law, any patent right which has been declared invalid shall be deemed to be non-existent.

Article 46 of China's Patent Law, said where the patentee or the person who made the request for invalidation, is not satisfied with the decision of the Patent Reexamination Board declaring the patent right invalid or upholding the patent right, a party may file suit in the people's court within three months.

Viagra entered the Chinese market in July 2000.

Many domestic companies opposed the patent because drugs produced by some Chinese companies had already been using the active ingredient of Viagra in drugs, Sina.com.cn news reported.

Chinese laws allow patent opposers to file complaints to authorities.

The grant meant that until 2014, any domestic companies which use the ingredient "sildenafil citrate" to produce drugs remedying erectile dysfunction would be regarded as patent violaors. In October 2001, 12 domestic pharmaceutical companies requested SIPO to cancel the patent rights, the website news said.



 
  Today's Top News     Top China News
 

Taiwan tops Rice agenda in China

 

   
 

Nations to fight cross-border crimes together

 

   
 

China, US resolve semiconductor dispute

 

   
 

40 die in Guangdong heatwave

 

   
 

Foreign firms cash in on China consumers

 

   
 

Hainan sets agenda for development

 

   
  Russia, China to enhance military co-op
   
  Official urges strengthening of lab safety
   
  Guangdong, Shanghai alert to bird flu
   
  Yellow River sewage spill spawns fish kill
   
  Japanese seabed research roundly decried
   
  40 die in Guangdong heatwave
   
 
  Go to Another Section  
 
 
  Story Tools  
   
  Related Stories  
   
China eases restrictions of Viagra
   
Shanghai to get new Pfizer clinical trial centre
   
New national plan gives priority to patent protection
   
Patent dispute lands in court
   
Legal framework aids patent application
  News Talk  
  When will china have direct elections?  
Advertisement
         
主站蜘蛛池模板: 内射在线Chinese| 国产高清在线a视频大全| 亚洲AV综合色区无码二区偷拍| 空白tk2一一视频丨vk| 日产精品卡2卡三卡乱码网址 | 国产欧美一区二区久久| 99久久精品国产片久人| 客厅餐桌椅子上波多野结衣| 久久久久久久性| 日韩毛片无码永久免费看| 亚洲国产精品无码久久一线| 沈婷婷小雷第三次| 伊人色综合久久天天人手人婷| 美国人与动性xxx播放| 国产三级免费电影| 高清不卡毛片免费观看| 国产男女爽爽爽免费视频| 2019国产开嫩苞视频| 国内不卡一二三四区| a毛片在线观看| 女女女女BBBBBB毛片在线| 中文字幕免费在线观看动作大片| 日本亲与子乱ay中文| 久久精品国产亚洲7777| 最近中文字幕完整在线电影| 亚洲人成网站免费播放| 色吊丝中文字幕| 国产午夜无码精品免费看| 99福利在线观看| 国产精品αv在线观看| 2017天天干夜夜操| 国产精品视频h| 800av凹凸视频在线观看| 国模吧一区二区三区精品视频 | 青青草国产三级精品三级| 国产成人亚洲精品大帝| 国产探花在线视频| 国产日韩精品欧美一区| 免费观看无遮挡www的视频| 国产精华av午夜在线观看| 福利视频757|