Diplomatic & Courtesy
Diplomatic & Courtesy in Thailand: required documents, step-by-step process, professional tips, common pitfalls and how our 15+ year consulting team handles the whole chain for you.
Documents to prepare
- High-resolution mark image or invention disclosure
- List of goods/services to be covered
- Company affidavit or applicant's ID
- Power of attorney for the agent and evidence of use, if available
Step-by-step process
- Clearance search — Database search before filing to reduce refusal and opposition risk.
- Classify goods/services — Nice classification matched to actual commercial use.
- File — Filed with the Department of Intellectual Property with full supporting documents.
- Respond to objections — Submissions prepared for office actions or oppositions.
- Registration and renewals — Certificate obtained and renewal deadlines diarised.
Common pitfalls to avoid
- Extracts older than the authority's accepted window are rejected — always check the issue date first.
- Translating before obtaining a fresh certified copy usually forces a full restart.
- Name spelling that differs from the passport is the single most common rejection reason.
- Each embassy has its own binding, paper size and language rules — do not assume they are the same.
- Sequence matters: certification, legalisation and embassy steps cannot be reordered.
All Diplomatic & Courtesy pages
- bang bon
- bang kapi
- bang khae
- bang khen
- bang kho laem
- bang khun thian
- bang na
- bang phlat
- bang rak
- bang sue
- bangkok noi
- bangkok yai
- bueng kum
- chatuchak
- chom thong
- din daeng
- don mueang
- dusit
- huai khwang
- khan na yao
- klong sam wa
- klong san
- klong toey
- lak si
- lat krabang
- lat phrao
- min buri
- nong chok
- nong khaem
- pathum wan
- phasi charoen
- phaya thai
- phra khanong
- phra nakhon
- pom prap sattru phai
- prawet
- rat burana
- ratchathewi
- sai mai
- samphanthawong
- saphan sung
- sathon
- suan luang
- taling chan
- thawi watthana
- thonburi
- thung khru
- wang thonglang
Frequently asked questions and answers
What exactly does Diplomatic & Courtesy cover?
Diplomatic & Courtesy covers document preparation, translation where required, certification by the competent authority and — when the document is used abroad — legalisation through the Ministry of Foreign Affairs and the destination embassy. Our consultants confirm the exact chain for your specific document before you start.
Which documents do I need to prepare first?
High-resolution mark image or invention disclosure • List of goods/services to be covered • Company affidavit or applicant's ID • Power of attorney for the agent and evidence of use, if available
How long does the whole process take?
In-office certification is usually same-day. Ministry legalisation and embassy steps depend on each authority's queue, so we give a written timeline per case after reviewing your documents.
Can you handle everything for me?
Yes. This is the option most clients choose: you send the documents, our consulting team maps the requirements, prepares, certifies, files and delivers, and we stay available if the receiving authority asks for anything more.
How much does it cost?
Fees depend on document type, language and the authorities involved. Contact our team via phone, LINE or email for a written quotation before any work starts.
Are you only a filing agency?
No. With 15+ years of practice we act as consultants first: we advise on which route is valid, what the receiving body will accept, and which steps you can safely skip — then execute the work for you.
What happens if the authority rejects a document?
We pre-check against the destination checklist to avoid it. If a rejection still happens on work we handled, we correct and refile it as part of the same engagement.
Do you serve clients outside Bangkok or overseas?
Yes — nationwide in Thailand and for Thai nationals and foreign nationals abroad, using couriered originals and digital pre-checks.
Prefer not to handle this yourself?
Our consulting team has advised on document chains for over 15 years. Send your documents and we handle preparation, certification, filing and delivery end to end — and advise you at every decision point.
Talk to a consultant