各國檢索

Australia(澳洲)	http://www.ipaustralia.gov.au/patents/search_index.htm
Canada(加拿大)	http://patents1.ic.gc.ca/intro-e.html
Chile(智利)	http://www.dpi.cl/dpi_web/Frm_Login_default2.htm
Czech Republic(捷克)	http://isdvapl.upv.cz/pls/portal30/pt.ptfrm
European Patent Office(歐洲)	http://www.espacenet.com
Finland(芬蘭)	http://www.prh.fi/en/patentit/tietokannat/patinfo.html
France(法國)	http://fr.espacenet.com/
Germany(德國)	https://dpinfo.dpma.de/index_e.html
Hungary(匈牙利)	http://www.hpo.hu/English/adatbazis/
India(印度)	http://www.patentoffice.nic.in/ipirs/patentsearch.htm
Ireland(愛爾蘭)	http://www.patentsoffice.ie/en/patents_searching.aspx
Japan(日本)	http://www.ipdl.inpit.go.jp/homepg_e.ipdl https://www.j-platpat.inpit.go.jp/web/all/top/BTmTopEnglishPage（updated on Mar.23, 2015）
Latin America(拉丁美洲)	http://lp.espacenet.com/
New Zealand (紐西蘭)	http://www.iponz.govt.nz/cms/banner_template/IPPATENT
OHIM (Office for Harmonization in the Internal Market - Trademarks and Designs)(歐盟市場調和局-商標與設計)	http://oami.europa.eu/en/default.htm
People's Republic of China(中國)	http://218.240.13.210/sipo_EN/search/tabSearch.do?method=init
Republic of Korea(韓國)	http://k2epat.kipris.or.kr/k2epat/searchLogina.do?next=GeneralSearch (Basic Search) http://k2epat.kipris.or.kr/k2epat/searchLogina.do?next=ItemSearch (Advanced Search) http://www.koreantk.com/en/ (Korean Traditional Knowledge Portal)
Romania(羅馬尼亞)	http://bd.osim.ro/cgi-bin/invsearch8
Russian Federation(俄羅斯)	http://www1.fips.ru/wps/wcm/connect/content_en/en/main/
Singapore(新加坡)	http://www.epatents.gov.sg/PE/
Slovakia(斯洛伐克)	http://www.indprop.gov.sk/eskipo.php?lang=en&idd=2&idd2=
Slovenia(斯洛維尼亞共和國)	http://www2.uil-sipo.si/dse.htm
Spain(西班牙)	http://invenes.oepm.es
Switzerland(瑞士)	http://www.swissreg.ch
Thailand(泰國)	http://patentsearch.moc.go.th/DIPSearch/PatentSearch/SearchSimple.aspx
United Kingdom(英國)	hhttp://www.ipo.gov.uk/patent.htm
United States of America(美國)	http://www.uspto.gov/patft/index.html http://tess2.uspto.gov/bin/gate.exe?f=login&p_lang=english&p_d=trmk

供您參考！

Ron
資料來源：http://www.wipo.int/patentscope/en/dbsearch/national_databases.html