Patent Search Method _ Patent

Patent Search URL Summary *************************
Bai Teng Patent Search: url:http://so.baiten.cn/
Google Patent search: Url:https://www.google.com.hk/?tbm=pts&gws_rd=cr,ssl
http://www.freepatentsonline.com/
Www.drugfuture.com/uspat/us_patent.asp

Google Patent Search *************************
Qualifying words:
Patent number, PATENT:XX
Title, Intitle
The applicant's company, Inassignee: "XXX"
Inventor: ininventor: "XXX"
International classification number, Tlpclass,
Application number, Inapplnum: "XXX"
Release date of Approval: Issue Date:
Application Date: Filing date:xxx

Freepatentsonline *************************
Expert search:
Patent name, ttl/xxx
Abstract, abst/"XX X"
Application date, single Date:apd/1/5/2012,range:apd/1/1/1790->12/31/2001,math:apd/now-20year->now
Announcement date, pd/12/08/2009
Application number, apn/123456,apn/09/123456,apn/123*
Patent number, pn/6954235,pn/20070220636
Inventor name, In/smith
Category number, ipc/a63f13/00,ipc/a63f13/*,


Bai Teng Patent Search *************************
url:http://so.baiten.cn/
Patent name, grammar: ti: ("xxxx"), parentheses can be removed, such as search: ti: "xxx" or ti: ("xxx")
Applicant, Grammar: PA: ("xxx") limited search for applicants, for example, Pa:sony,pa:samsung
Patent number, PN: "xxxx",
Application date, Syntax: ad: ("YYYYMMDD")
Public date, grammar: PD: "YYYYMMDD", such as the patent for search May 18, 2007, Ad: ("20070518")
Category number, Syntax: ic1: ("xxx"), such as Ic1: ("c07d307/89"), Ic1: ("G06k9/36"), IC1,IC2:G06T3/20
Combined Search
(condition 1) and (condition 2) or (condition 3)-(condition 4)