PI专利网站

PI专利网站:

1、http://www.powerint.com/company/patents/trademarks

2、http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/search-bool.html&r=0&f=S&l=50&TERM1=power+integrations&FIELD1=ASNM&co1=OR&TERM2=power+intergrations&FIELD2=ASNM&d=ptxt

 

附上两个搜索和下载专利的网站:

http://patft.uspto.gov/netahtml/PTO/index.html

http://www.freepatentsonline.com/

posted @ 2013-12-19 11:12  HelloSUN  阅读(780)  评论(0编辑  收藏  举报