Endless Collaborations · Limitless Innovations

Patent drawings, drafted to perfection.

DuoNexus IP turns rough sketches, photographs, CAD files and 3D models into examiner-ready utility and design drawings — precise, compliant, and delivered on your deadline.

USPTO · PCT · EPO Compliant NDA-Protected Unlimited Revisions 24-Hr Rush Available
0+Drawings Delivered
0+Attorneys & Inventors Served
0+Countries Filed In
0.7%On-Time Delivery

What We Draft

Every drawing an examiner expects.
Every standard, met.

From a napkin sketch to a complete drawing set — we cover the full spectrum of patent illustration.

FIG. A

Utility Patent Drawings

Sectional views, exploded assemblies, flowcharts and block diagrams — fully numbered and compliant with 37 CFR §1.84.

FIG. B

Design Patent Drawings

All seven standard views with flawless surface shading and broken-line conventions that protect exactly what you claim.

FIG. C

3D & CAD Conversions

We work directly from STEP, IGES, SolidWorks and mesh files — extracting perfect orthographic and perspective views.

FIG. D

PCT & International Sets

One drawing set, every jurisdiction — margins, numbering and line weights tuned for WIPO, EPO, JPO, CNIPA and IPO.

FIG. E

Office Action Corrections

Received a drawing objection? We fix rejected figures fast — most corrections turned around within 24 hours.

FIG. F

3D Modelling for Different Purposes

Product renders, exploded views and manufacturing-ready 3D assets — for patents, prototyping, e-commerce and investor decks.

Why DuoNexus IP

Built for attorneys.
Trusted by inventors.

Absolute Confidentiality

Every project is covered by a signed NDA before a single file is opened. Your invention stays yours.

Deadline-Proof Delivery

Standard sets in 2–4 business days. Rush filings handled in as little as 24 hours — without cutting corners.

Three-Level Quality Check

Draftsman → senior illustrator → compliance reviewer. Nothing ships until it passes all three desks.

Unlimited Revisions

We revise until you and your examiner are satisfied — at no additional cost, ever.

How It Works

From disclosure to drawing set
in five quiet steps.

01
Same Day

Send us anything

A sketch, a photo, a CAD file, a 3D scan, even a video walk-around. Email it or use the form below — an NDA is issued immediately.

02
Within Hours

Free quote & view plan

We reply the same business day with a fixed quote and a recommended figure list — which views, sections and details your filing needs.

03
Days 1–3

Drafting begins

A specialist in your industry drafts every figure to the target office's conventions — line weights, shading, numbering and margins.

04
Your Review

Review & refine

Request any change — we revise without limit until every figure is exactly right.

05
Filing-Ready

Delivery in every format

Final files arrive as PDF, TIFF, JPEG, DWG, AI, Visio, PPT, Word (DOC) or any format your docketing system needs — named, numbered and ready to file.

Global Reach

One studio.
Every patent office.

Wherever you file, your drawings arrive already compliant — we draft to the formal rules of 20+ jurisdictions, from the USPTO to the smallest national office.

WOWIPO · PCT
InternationalPCT Route
United StatesUSPTO
EuropeEPO
JapanJPO
United KingdomUKIPO
ChinaCNIPA
GermanyDPMA
South KoreaKIPO
CanadaCIPO
IndiaIP India
AustraliaIP Australia
FranceINPI
BrazilINPI-BR
SingaporeIPOS
SwitzerlandIGE / IPI
IsraelILPO
MexicoIMPI
U.A.E.UAE MoE

Selected Plates

Work that speaks in line weight.

A sample of the industries we draft for, redrawn here as living figures. Full portfolios are shared privately on request — most of our work is protected by client NDAs.

Utility Patent Drawings

20
22
24
Front View1 / 3
Gear AssemblyMechanical
30
32
34
Side View1 / 3
Auto-InjectorMedical Device
40
42
44
Front View1 / 3
Control ModuleElectronics
50
52
54
Front View1 / 3
Beverage VesselConsumer Product
60
62
64
Front View1 / 3
Quad Rotor FrameAerospace
70
72
74
Side View1 / 3
Cantilever ChairFurniture / Design

Design Patent Drawings

Side View1 / 3
Athletic ShoeFootwear
Front View1 / 3
SmartwatchWearables
Front View1 / 3
Wireless HeadsetAudio
Front View1 / 3
Perfume FlaconCosmetics
Side View1 / 3
Desk LampLighting
Front View1 / 3
SunglassesEyewear

Client Notes

The reviews we're allowed to show.

"

Zero drawing objections across forty-plus filings. DuoNexus IP catches compliance issues our previous vendor never even flagged.

Patent Attorney · IP Boutique, Texas
"

They took a shaky phone video of my prototype and returned a seven-sheet design patent set in three days. The examiner allowed it first pass.

Independent Inventor · Consumer Products, UK
"

Our docketing team treats DuoNexus IP like an internal department. Same-day quotes, watermarked proofs, files named exactly to our convention.

Senior Paralegal · AmLaw 100 Firm, New York
"

A 24-hour office action deadline, twelve corrected figures, delivered with nine hours to spare. That is why we don't use anyone else.

IP Counsel · Medical Device Manufacturer, Germany

Questions

Asked before every first order.

What do you need from me to start?+

Anything that shows the invention: hand sketches, photographs, CAD files (STEP, IGES, SLDPRT, DWG), 3D scans, existing figures, or even a short video. We reconstruct complete, compliant views from whatever you have.

How is pricing determined?+

Every invention is different, so we quote per project — based on the number of figures, complexity and turnaround. Send your materials through the form below and you'll have a fixed, no-obligation quote the same business day. No surprises after the quote, ever.

Is my invention safe with you?+

Yes. We sign an NDA before reviewing any disclosure, files are stored on encrypted systems with access limited to your assigned team, and everything is permanently deleted on request after delivery.

Which patent offices do you draft for?+

USPTO, WIPO/PCT, EPO, UKIPO, JPO, CNIPA, IP Australia, CIPO and the Indian Patent Office, among others. Each set is prepared to the specific formal requirements of your target office.

What if the examiner objects to a drawing?+

We correct it free of charge, at priority speed — for the life of your application. Drawing objections on our work are rare, and when they happen they are our responsibility, not yours.

What formats do you deliver?+

PDF and TIFF for filing, plus editable sources — AI, DWG, CDR, Visio, PowerPoint (PPT) and Word (DOC) — so future amendments never start from zero. Files are named and numbered to your docketing convention.

About Us

Two disciplines.
One perfect drawing.

"Endless Collaborations, Limitless Innovations."

DuoNexus IP was founded on a simple observation: great patent drawings are born where two worlds meet — the engineering precision of a draftsman and the legal fluency of an IP professional. Most vendors offer one or the other. We built a studio where both sit at the same desk.

That is the "duo" in our name — and the "nexus" is you. Every project pairs a domain-specialist illustrator with a compliance reviewer who reads your figures the way an examiner will, so what leaves our desk is not just a beautiful drawing but a defensible one.

We work as an extension of your team — attorneys, agents, in-house counsel and independent inventors across 20+ countries — collaborating without limits until your invention is protected exactly as you imagined it.

THE DUONEXUS IP
INNOVATION IP LAW DUONEXUS IP

Start Here

Get your free quote.
Same business day.

Tell us about your invention — or just attach what you have. We reply with a fixed quote and a recommended figure list within hours. No obligation, no pressure, fully NDA-protected.

Your disclosure is confidential. We'll send an NDA with our first reply — before you share any drawings.

Request received.

Thank you — a senior draftsman will reply from info@duonexusip.com within 4 business hours with your NDA and quote.

Free Quote