We recommend in the first instance that you contact Offices directly. Please note the following contact information for your WIPO Sequence or WIPO ST.26 queries below.

Office nameST.3 CodeContact
Chinese National Intellectual Property Association (CNIPA)CNtmo.international@cnipa.gov.cn
Canadian Intellectual Property Association (CIPO)CAcipopbpctpractice-opicpratiquepctdb@ised-isde.gc.ca
Danish Patent and Trademark OfficeDKpvs@dkpto.dk
European Patent Office (EPO)EMSupport@epo.org
IP AustraliaAUhttps://www.ipaustralia.gov.au/about-us/contact-us-form 
Intellectual Property Office of Singapore (IPOS) SGpct@ipos.gov.sg
Japan Patent Office (JPO)JPPA0762@jpo.go.jp
Korean Intellectual Property Office (KIPO)KRsequencehelpdesk@korea.kr 
Oficina Española de Patentes y Marcas (OEPM)ESsecuencias@oepm.es
Patent Cooperation-Treaty International Patent System (PCT)WOpct.infoline@wipo.int
The Swedish Patent and Registration Office (PRV) SE

Kundsupport.patent@prv.se

Companies and Intellectual Property Commission (CIPC) ZA

wiposequence@cipc.co.za

United Kingdom Intellectual Property Office (UK IPO)GB

information@ipo.gov.uk

United States Patent and Trademark Office (USPTO)USsequencehelpdesk@uspto.gov
(IB of ) World Intellectual Property Organization (WIPO)IBwiposequence@wipo.int