The Hidden Power of Design Patents: Your Secret Weapon in Product Protection
Key Takeaways:
- Design patents protect appearance, not function – While utility patents cover how products work, design patents protect how they look, enabling patent protection for the visual aspects of products.
- Drawings are key – Drawings are the most important element of a design patent application.
- Focus on novel ornamental elements – Design patent protection may be available for existing and common products if the ornamental aspects are new.
Function vs. Form: The Key Difference
Put simply: utility patents protect how things work, design patents protect how things look.
This distinction becomes particularly relevant in markets saturated with utility patents, especially for consumer products. Consider a water bottle where the cooling technology may lack novelty, but the distinctive curves, ridges, or silhouette could constitute a protectable design.
The Drawings are Everything
A design patent consists of a brief specification, a single claim, and detailed drawings of the claimed design. The drawings constitute the most critical component of the application and determine the scope of protection for any issued design patent. These drawings must provide sufficient views to completely disclose the appearance of the design and should be comprehensive enough that no aspect of the design is left to speculation. Both color and black-and-white photographs are acceptable for design patent applications.
The single claim references the design depicted in the figures. Certain portions of the drawing may be excluded from the claim through visual indication of the excluded material and an accompanying disclaimer statement.
Design Patent Term
Issued design patents have a term of 15 years from the date of issue. Also, unlike utility patents, they do not require periodic maintenance payments.
Would an Ordinary Observer Be Fooled?
Design patent infringement occurs when an “ordinary observer” would find the accused design “substantially similar” to the claimed design and would be deceived into purchasing the accused design believing it to be the claimed design. The “ordinary observer” test relies on comparison between the accused device and the patent drawings, emphasizing the critical importance of the drawings. This infringement standard differs significantly from utility patent standards, which require each element of the claimed invention to be present. The design patent standard more closely resembles trademark infringement analysis.
The Bottom Line
While you may not be eligible for utility patent protection of a common existing consumer product, you may still be able to add novel ornamental design elements that qualify for design patent protection. The product’s functionality need not be novel if its appearance is new. Adding distinctive ornamental elements to existing products can provide market differentiation while offering legal protection against copying. Additionally, the legal and filing fees for design patent applications are typically lower than those for utility patent applications.
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Remember that this information is general in nature – always consult with a licensed trademark attorney for advice about your specific situation.
Robert McConnell is the Principal Attorney of McConnell Law Firm PC, with nearly 20 years of startup experience in Silicon Valley.