AI Patent Drawing Software
The patent drawing tool that generates compliant figures from text and images. Line art, 3D renderings, flowcharts — ready for USPTO, CNIPA, EPO, JPO, KIPO, and PCT filing workflows.
New
Reference numerals you can actually edit
On most AI drawings the numerals are baked into the pixels, so one wrong number means redrawing the figure. In PatentFig AI they are an editable layer on every figure.
Edit reference numerals
Numerals
14 appears more than once — fine if it marks the same part twice.
Try it: drag a numeral or the dot at the end of its leader, or press on the drawing and drag to add one.
Reads the numerals already there
Open the editor on any figure in your workspace and its numerals and leader lines become labels you can move and change.
Drag to add, drag to fix
Press on a part and drag out to place a new numeral with its leader. Move a numeral, or drag the tip of its leader to point at another part.
Flags numbering mistakes
Duplicate numerals, empty labels and crossing leaders are pointed out before you save.
Every edit is a new version
The original figure stays in its version history. On SVG figures the numerals remain real text, so they stay editable after later changes.
Filing sheets for six patent offices
Export the whole figure set laid out for the office you file with: page size, margins, figure labels and sheet numbers follow that office’s rules.
USPTO, EPO, PCT, CNIPA, JPO and KIPO
Labels such as FIG. 1, Fig. 1 or 图1 and sheet numbers such as 1/3 are added in each office’s own style.
Black and white, 300 DPI
PDF or TIFF sheets, or one image per figure for offices that take figures rather than pages.
Checked sheet by sheet
Each sheet is checked for content, color, line style and text size, and the package includes the compliance report.
- Paper
- A4 · 210×297 mm
- Margins T/R/B/L
- 25 / 15 / 10 / 25 mm
- Formats
- PDF · TIFF
Create Patent Figures in 3 Steps
Upload reference images, describe your invention, choose figure types, and generate patent-compliant drawings automatically.
Describe or Upload Sketch
Enter a description, or upload your sketch/reference.
Choose View Angles
Select the views you want to generate.
Fix Numerals and Export
Adjust reference numerals, then export filing sheets for your office.
Core Capabilities
Everything you need for patent drawing generation
From line art to 3D renderings, this patent drawing software handles every type of patent illustration with AI precision.
Built for Patent Professionals
Features designed for your workflow
Every feature is designed to save time and reduce errors in patent figure preparation.
Chat-to-Modify
Edit any figure using natural language commands. Say 'make the arrow thicker' or 'add a cross-section view' and watch AI apply the changes instantly.
Multi-Modal Input
Upload reference photos, sketches, CAD screenshots, or just describe your invention in text. PatentFig AI understands all input types.
Version Control
Every generation and edit is saved as a new version of the figure. Switch between versions and continue from any of them at any time.
Filing Sheet Export
Export the figure set as filing sheets for USPTO, EPO, PCT, CNIPA, JPO or KIPO with each office’s margins, labels and sheet numbers, or download single figures as PNG, SVG, PDF or TIFF.
Project Management
Organize figures by patent application. Each project tracks all figure sets, versions, and compliance status in one place.
Multi-Office Support
Switch between CNIPA, USPTO, EPO, JPO, KIPO, and PCT/WIPO-oriented formatting workflows. One set of source figures, multiple office-compliant outputs.
Confidentiality
Your drawings stay yours
Patent figures describe unfiled inventions. PatentFig AI is built around that fact — the same commitments are documented in our Trust Center and available contractually.
No training on your work
Your prompts, uploads, and generated figures are never used to train our models, and third-party AI providers are not permitted to train on them either.
Encrypted in transit and at rest
Customer content is encrypted in transit and at rest, with access limited to what operating the service requires.
You control retention
Delete projects anytime; closed accounts are removed within 30 days. Sign a mutual NDA or DPA online in two minutes, on any plan.
Pricing
Filing-ready patent figures, priced per credit
PatentFig AI turns a description, sketch, or photo into office-compliant black-and-white patent figures you can file.
Free
For first-time users evaluating the full workflow
- 20 credits on sign-up day, then 10 free credits every day (~1 figure/day)
- Anchor + multi-view workflow
- Line art, rendering, flowchart
- Slot regenerate + versions
- Daily credits expire the same day
- Best for trial use
- Standard priority
Basic
For individual inventors and light project volume
- 500 credits/month (~50 figures)
- Everything in Free
- Filing-sheet export for 6 patent offices + compliance report
- Higher monthly capacity
- Multi-project workflow
- Slot-by-slot regeneration
- Version timeline review
- Built for ongoing filings
Pro
For patent professionals and firm-level throughput
- 1500 credits/month (~150 figures)
- Everything in Basic
- Higher multi-case throughput
- More regeneration headroom
- Large figure-set review
- High-frequency drafting ready
- Faster iteration loops
- Firm-level production rhythm
- Online NDA & DPA signing
Enterprise
For organizations running high-volume figure pipelines
- 4000 credits/month (~400 figures)
- Everything in Pro
- Highest monthly capacity
- Team-scale continuous generation
- Multi-pipeline production
- Portfolio-level consistency
- Largest iteration headroom
- Organization-wide workflow
- Built for heavy workloads
- Online NDA & DPA signing
User Feedback
How patent teams are using PatentFig AI
A realistic look at where PatentFig AI saves time: early drafts, cross-office formatting, and revision-heavy review cycles.
Maya Chen
Patent Attorney, Consumer Electronics
We used to mark up screenshots and redraw everything manually. PatentFig AI gets us to a reviewable first draft much faster, especially for multi-view figure sets.
Daniel Mercer
US Patent Agent, Robotics Startup
The biggest win is iteration speed. I can upload a reference, ask for cleaner line art, and get something my inventors can comment on without waiting for a separate drafting cycle.
Sofia Alvarez
IP Operations Manager, Medical Devices
For internal handoff, it helps us standardize figure packages before they go out to outside counsel. That cuts a lot of avoidable back-and-forth.
Ethan Brooks
Design Patent Counsel
What stood out for me was consistency across views. Front, rear, top, and perspective outputs feel like they belong to the same set instead of looking independently drafted.
Aiko Tanaka
Patent Engineer, Industrial Equipment
We still do our own final checks, but PatentFig AI shortens the path from inventor sketch to filing-ready structure. That matters when deadlines move unexpectedly.
Jonathan Reed
Partner, Boutique IP Practice
It is particularly useful for rough client materials. Instead of saying a photo is not usable, we can turn it into a cleaner figure draft and continue the conversation.
Maya Chen
Patent Attorney, Consumer Electronics
We used to mark up screenshots and redraw everything manually. PatentFig AI gets us to a reviewable first draft much faster, especially for multi-view figure sets.
Daniel Mercer
US Patent Agent, Robotics Startup
The biggest win is iteration speed. I can upload a reference, ask for cleaner line art, and get something my inventors can comment on without waiting for a separate drafting cycle.
Sofia Alvarez
IP Operations Manager, Medical Devices
For internal handoff, it helps us standardize figure packages before they go out to outside counsel. That cuts a lot of avoidable back-and-forth.
Ethan Brooks
Design Patent Counsel
What stood out for me was consistency across views. Front, rear, top, and perspective outputs feel like they belong to the same set instead of looking independently drafted.
Aiko Tanaka
Patent Engineer, Industrial Equipment
We still do our own final checks, but PatentFig AI shortens the path from inventor sketch to filing-ready structure. That matters when deadlines move unexpectedly.
Jonathan Reed
Partner, Boutique IP Practice
It is particularly useful for rough client materials. Instead of saying a photo is not usable, we can turn it into a cleaner figure draft and continue the conversation.
Maya Chen
Patent Attorney, Consumer Electronics
We used to mark up screenshots and redraw everything manually. PatentFig AI gets us to a reviewable first draft much faster, especially for multi-view figure sets.
Daniel Mercer
US Patent Agent, Robotics Startup
The biggest win is iteration speed. I can upload a reference, ask for cleaner line art, and get something my inventors can comment on without waiting for a separate drafting cycle.
Sofia Alvarez
IP Operations Manager, Medical Devices
For internal handoff, it helps us standardize figure packages before they go out to outside counsel. That cuts a lot of avoidable back-and-forth.
Ethan Brooks
Design Patent Counsel
What stood out for me was consistency across views. Front, rear, top, and perspective outputs feel like they belong to the same set instead of looking independently drafted.
Aiko Tanaka
Patent Engineer, Industrial Equipment
We still do our own final checks, but PatentFig AI shortens the path from inventor sketch to filing-ready structure. That matters when deadlines move unexpectedly.
Jonathan Reed
Partner, Boutique IP Practice
It is particularly useful for rough client materials. Instead of saying a photo is not usable, we can turn it into a cleaner figure draft and continue the conversation.
Maya Chen
Patent Attorney, Consumer Electronics
We used to mark up screenshots and redraw everything manually. PatentFig AI gets us to a reviewable first draft much faster, especially for multi-view figure sets.
Daniel Mercer
US Patent Agent, Robotics Startup
The biggest win is iteration speed. I can upload a reference, ask for cleaner line art, and get something my inventors can comment on without waiting for a separate drafting cycle.
Sofia Alvarez
IP Operations Manager, Medical Devices
For internal handoff, it helps us standardize figure packages before they go out to outside counsel. That cuts a lot of avoidable back-and-forth.
Ethan Brooks
Design Patent Counsel
What stood out for me was consistency across views. Front, rear, top, and perspective outputs feel like they belong to the same set instead of looking independently drafted.
Aiko Tanaka
Patent Engineer, Industrial Equipment
We still do our own final checks, but PatentFig AI shortens the path from inventor sketch to filing-ready structure. That matters when deadlines move unexpectedly.
Jonathan Reed
Partner, Boutique IP Practice
It is particularly useful for rough client materials. Instead of saying a photo is not usable, we can turn it into a cleaner figure draft and continue the conversation.
Priya Raman
Patent Drafting Lead, Deep Tech Team
The chat-based edits are practical. Small requests like adjusting line weight or adding another sectional view no longer require restarting the whole process.
Liam Foster
IP Specialist, Manufacturing Systems
We use it most for flowcharts and system diagrams. Engineers describe the logic in plain language, and PatentFig AI gives us a much cleaner starting point than a blank canvas.
Claire Dubois
European Patent Consultant
Having one workspace for figure versions is surprisingly helpful. It is easier to explain to clients what changed between drafts and why we selected a specific set for filing.
Kevin Park
Patent Analyst, Semiconductor Tools
The tool is useful before formal drafting even begins. We validate whether the visual story of the invention is complete, then refine the set instead of discovering gaps late.
Isabella Rossi
IP Program Manager, Hardware R&D
PatentFig AI helps align inventors, counsel, and operations on the same visual package. That saves time in review meetings because everyone is reacting to the same figure set.
Noah Kim
Outside Patent Illustrator
I would not treat it as a replacement for judgment, but it is a strong acceleration layer. The initial outputs are far closer to usable than typical generic image tools.
Priya Raman
Patent Drafting Lead, Deep Tech Team
The chat-based edits are practical. Small requests like adjusting line weight or adding another sectional view no longer require restarting the whole process.
Liam Foster
IP Specialist, Manufacturing Systems
We use it most for flowcharts and system diagrams. Engineers describe the logic in plain language, and PatentFig AI gives us a much cleaner starting point than a blank canvas.
Claire Dubois
European Patent Consultant
Having one workspace for figure versions is surprisingly helpful. It is easier to explain to clients what changed between drafts and why we selected a specific set for filing.
Kevin Park
Patent Analyst, Semiconductor Tools
The tool is useful before formal drafting even begins. We validate whether the visual story of the invention is complete, then refine the set instead of discovering gaps late.
Isabella Rossi
IP Program Manager, Hardware R&D
PatentFig AI helps align inventors, counsel, and operations on the same visual package. That saves time in review meetings because everyone is reacting to the same figure set.
Noah Kim
Outside Patent Illustrator
I would not treat it as a replacement for judgment, but it is a strong acceleration layer. The initial outputs are far closer to usable than typical generic image tools.
Priya Raman
Patent Drafting Lead, Deep Tech Team
The chat-based edits are practical. Small requests like adjusting line weight or adding another sectional view no longer require restarting the whole process.
Liam Foster
IP Specialist, Manufacturing Systems
We use it most for flowcharts and system diagrams. Engineers describe the logic in plain language, and PatentFig AI gives us a much cleaner starting point than a blank canvas.
Claire Dubois
European Patent Consultant
Having one workspace for figure versions is surprisingly helpful. It is easier to explain to clients what changed between drafts and why we selected a specific set for filing.
Kevin Park
Patent Analyst, Semiconductor Tools
The tool is useful before formal drafting even begins. We validate whether the visual story of the invention is complete, then refine the set instead of discovering gaps late.
Isabella Rossi
IP Program Manager, Hardware R&D
PatentFig AI helps align inventors, counsel, and operations on the same visual package. That saves time in review meetings because everyone is reacting to the same figure set.
Noah Kim
Outside Patent Illustrator
I would not treat it as a replacement for judgment, but it is a strong acceleration layer. The initial outputs are far closer to usable than typical generic image tools.
Priya Raman
Patent Drafting Lead, Deep Tech Team
The chat-based edits are practical. Small requests like adjusting line weight or adding another sectional view no longer require restarting the whole process.
Liam Foster
IP Specialist, Manufacturing Systems
We use it most for flowcharts and system diagrams. Engineers describe the logic in plain language, and PatentFig AI gives us a much cleaner starting point than a blank canvas.
Claire Dubois
European Patent Consultant
Having one workspace for figure versions is surprisingly helpful. It is easier to explain to clients what changed between drafts and why we selected a specific set for filing.
Kevin Park
Patent Analyst, Semiconductor Tools
The tool is useful before formal drafting even begins. We validate whether the visual story of the invention is complete, then refine the set instead of discovering gaps late.
Isabella Rossi
IP Program Manager, Hardware R&D
PatentFig AI helps align inventors, counsel, and operations on the same visual package. That saves time in review meetings because everyone is reacting to the same figure set.
Noah Kim
Outside Patent Illustrator
I would not treat it as a replacement for judgment, but it is a strong acceleration layer. The initial outputs are far closer to usable than typical generic image tools.
FAQ
Frequently Asked Questions
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