UK IPO pending-patent document upload

Official requirement

Add each required file. Conditional files are marked optional.

Requirement verified August 21, 2026 · Source: Intellectual Property Office (GOV.UK) ↗

Documents this application needs

PDF · ≤10000 KB

Choose file or pagesOne file — PDF or a photo of the document

Every submission to the pending-patent service must include a PDF cover letter. All documents except sequence listings (.txt) must be saved as PDFs.

PDF · ≤10000 KB

Choose file or pagesSeveral pages are fine; we combine them into one PDF in order

Only if it applies to youPDF · ≤10000 KB

Choose file or pagesSeveral pages are fine; we combine them into one PDF in order

0/2 files ready

file size ceiling
GOV.UK states the accepted formats and the cover-letter requirement but does not publish a per-file or total size ceiling for this service.
How we handle it: The 10 MB per-file value in this preset is an UploadPrep processing guard, not an official number. Prepare clean text-based PDFs; if the live form rejects a size, split the specification into replacement-page batches.