Our engineers turn sketches, photos, prototypes and CAD files into clean, examiner-ready figures that follow USPTO, EPO and PCT drawing rules. Every set passes three quality checks before it reaches you.
For patent attorneys, agents and inventors filing in the U.S., Europe and under the PCT.
Precise technical figures that show how your invention is built and how it works, so the examiner understands it quickly.
Consistent line work and surface shading across every view, with solid lines for the claimed design and broken lines for anything disclaimed.
Drawing objections fixed fast. We correct defects raised in an office action and return compliant replacement sheets ready to file.
The figures that software, biotech and pharma applications depend on, drawn to the same standard as mechanical work.
Most drawing objections come from small things: a margin a few millimetres short, lines too faint to reproduce, a numeral missing from one view. We check every sheet against these rules.
| Requirement | What we deliver |
|---|---|
| Standards | USPTO 37 CFR 1.84 & 1.152, EPO, PCT |
| Sheet size | A4 (21.0 × 29.7 cm) or Letter (8.5 × 11 in) |
| Margins | Top 2.5 · Left 2.5 · Right 1.5 · Bottom 1.0 cm |
| Line work | Uniform weight, black, dense enough to reproduce |
| Reference numerals | At least 0.32 cm (1/8 in) highConsistent across every view |
| Resolution | 300 DPI minimum, every format |
| Colour | Black & whiteColour drawings when the office allows them |
Hand sketches, photos, videos, prototypes, CAD files or the draft specification. We sign an NDA on request before you share anything.
We reply within 24 hours with the number of sheets, the price and a delivery date.
An engineer prepares the figures. Two more reviewers check them against the drawing rules of your patent office.
You receive filing-ready files in the formats you need. Changes are free, including fixes after an office action.
Unlimited revisions are included at every level. Large or unusual figures are confirmed in your quote before work starts.
Delivered in 3–4 business days.
Delivered in 3–4 business days.
For filing deadlines. A small surcharge applies, for a limited number of drawings.
Our draftsmen come from engineering backgrounds and are trained in USPTO and EPO drawing guidelines.
Each drawing is reviewed three times before delivery, so errors are caught here and not by the examiner.
We have prepared thousands of replacement sheets and know which defects patent offices object to.
Change requests are handled at no extra cost, before filing and after an office action.
Our team works 24×7, so changes come back quickly whatever your time zone.
Your invention stays private. We sign NDAs on request.
Standard delivery is 3–4 business days. Our rush service delivers within 24 hours for a small surcharge. For complex projects, we confirm the timeline in your quote.
Unlimited, at no extra cost. If the USPTO or another office raises a drawing objection, we make the corrections free of charge.
Every set is drawn to the rules of the office you are filing with (USPTO, EPO, PCT and others) and checked against them three times before delivery.
Yes. We are happy to sign a non-disclosure agreement before you send any material.
Send us what you have, sketches, photos or CAD, and we’ll come back with a price and a delivery date.