Services / 3D CAD

3D CAD for design patent drawings

One 3D appearance model, delivered as STEP and GLB, is the most reliable way to keep every drawing view of a design consistent.

Why drawings start from a 3D model

A design patent protects how a product looks, and its drawings are the claim. Every view has to describe the same object: the handle in the right place, the same curve on both sides, the same proportions from the top as from the front.

Views drawn one by one can drift apart. Views exported from a single model cannot, because they are all the same shape seen from different sides. That is why we draw the set from one model, and why the model is worth keeping once the drawings are done.

What you receive

  • STEP: the geometry in a neutral CAD format that most CAD programs can open
  • GLB: a light 3D file for the web, for rendering and for sharing with a patent attorney or agent

The model is an appearance model: it captures the visible form and proportions of the design. It is not manufacturing grade, so it has no tolerances, internal parts or production details.

Rotate a sample model

Perspective line drawing of a sample insulated bottle

The 3D preview is not available in this browser. The sample page shows the same design as drawings.

Drag to rotate · Scroll to zoomSample on a fictional product. Appearance model, not manufacturing grade.

The matching seven-view sheet is on the insulated bottle sample.

Which service fits

3D only

When you only need the model

You already have drawings or an attorney who prepares them, and you want a clean model to render views from or to hand to a manufacturer for reference.

Drawings only

When you only need the figures

You have a patent attorney and need black-and-white line drawings to the office’s drawing rules, and have no use for the 3D source.

Ask for a model

From $149 per design, one fixed quote before work starts, and a watermarked proof to review before you pay. Two rounds of revisions are included. Working from photos? See photo to patent drawing.

We prepare drawings and models. We do not file applications and we do not give legal advice.

Get a quote See pricing