http://www.freepatentsonline.com/

It is a useful site for US patent searching, which includes:

US Patents
US Patent Applications
EP documents
Abstracts of Japan
WIPO (PCT)
Non-patent Literature

The  site also includes cool \&quotatent Maps\" for \"Geographical Visualization\"

http://www.freepatentsonline.com/maps

Unfortunately, it seems very few US patents are applied from China, much lower than those from India

BTW, if someone out there know other useful sites, welcome to post them here !
分享到 :
0 人收藏

6 个回复

倒序浏览
Jerrynoah  注册会员 | 2011-10-7 20:05:07

Re:Here is a cool Web site for US Patent searching ...

OMG!
广告位说明
Andypong  新手上路 | 2011-10-19 19:53:17

Re:Here is a cool Web site for US Patent searching ...

thank U.
流星雨  新手上路 | 2011-12-25 20:22:23
thanks
yolanda3250  新手上路 | 2013-3-7 17:12:42
Thank u for sharing
douyuanyuan  新手上路 | 2013-3-13 15:14:34
You're very generous. tku
douyuanyuan  新手上路 | 2013-3-13 16:13:25
You're very generous. tku
您需要登录后才可以回帖 登录 | 立即注册

本版积分规则

qinzhu

新手上路

积分: 2 帖子: 1 精华: 0

楼主热帖

QQ|( 冀ICP备05010901号 )|博派知识产权

Powered by Discuz! X3.4 © 2001-2016 Comsenz Inc.

返回顶部