How do broken lines work in design patent drawings?

Broken (dashed) lines show environment or unclaimed portions — a strap on a claimed watch body, a wall the device mounts to. Nothing drawn in broken lines is part of the claim, so deciding the solid/broken split is a claim-scope decision, not a styling choice.

How many views does a design patent need?

The usual USPTO set is six orthographic views (front, rear, left, right, top, bottom) plus at least one perspective view. A view that is identical or a mirror image of another can be omitted with a statement in the specification.

Can I use shading in design patent figures?

Yes — the USPTO expects shading that shows surface contour, but it must be oblique-line or stippling shading, applied sparingly and consistently. Solid gray fills and photographic gradients are objection material, and color drawings or photographs are only accepted with a granted petition.

Do design patent drawings use reference numerals like utility figures?

No. Design figures generally avoid reference numerals and lead lines — the drawings themselves are the claim, so a clean view set carries it. That is the main difference from utility figures, which rely on numerals tied to the written description.

Design Patent Drawing Software

Generate the full set of design patent drawings, multi-view

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Turn a CAD model, product photo, or sketch into a design patent drawing set.
Generate the full US set: front, rear, left, right, top, bottom, plus a perspective view.
Use broken (phantom) lines to disclaim unclaimed environment and structure.
Add oblique-line or stippling surface shading — color or photos need a petition.
Keep figures free of reference numerals and lead lines, unlike utility drawings.

Design Patent Drawing Software hero workflow — Turn a CAD model, product photo, or sketch into a design patent drawing set.

Design patent drawing examples

Fictional products as consistent six-view sets — the format design patents require. Open one to pre-fill the generator.

How the PatentFig AI workflow runs

Start with the source, generate a controlled figure, review the result, then export only after validation.

Decide claim scope before generating views

Choose which portions are claimed (solid lines) and which are context (broken lines) first — changing the split later means redrawing the whole view set.

Keep all seven views geometrically consistent

The same edge must appear at the same proportion across the front, rear, left, right, top, bottom, and perspective views. View-to-view disagreement is the most common design drawing rejection.

Turn a CAD model, photo, or sketch into one set

Feed a CAD render, product photo, or sketch and get a single consistent design patent drawing set — one shading convention, no reference numerals, broken lines only where you disclaim environment.

Design Patent Drawing Software

Design Patent Drawing FAQ

Design Patent Drawing Software

Design patent drawings define the claimed appearance, so PatentFig AI turns a CAD model, product photo, or sketch into a consistent set of design patent drawings — front, rear, left, right, top, bottom, and perspective views — with broken lines for unclaimed environment, surface shading, and no reference numerals.

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