Frequently Asked Questions

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Questions and answers are presented for general information purposes and are not intended to be legal advice or to be a substitute for advice from qualified counsel.  Please see our terms and conditions for more information.

Do I need a working prototype before I file a patent application?

No. "Constructive" reduction to practice may occur, for the subject matter described in a patent application, when the application is filed.

What's the difference between a design and utility patent?

A utility patent protects the way an article is used and works, while a design patent protects the way an article looks.

Can I update my patent application after filing?

In general, no new matter may be added after filing. Claims may be amended if the amendments are support by the originally filed specification.