How are secondary considerations evaluated in design patent applications?

Secondary considerations, also known as objective evidence of nonobviousness, play an important role in evaluating design patent applications. The MPEP states:

“Secondary considerations, such as commercial success and copying of the design by others, are relevant to the evaluation of obviousness of a design claim. Evidence of nonobviousness may be present at the time a prima facie case of obviousness is evaluated or it may be presented in rebuttal of a prior obviousness rejection.”

The MPEP cites two relevant cases:

These cases emphasize the importance of considering secondary factors when evaluating the nonobviousness of a design. Factors such as commercial success, copying by others, and unexpected results can provide objective evidence that a design is not obvious, even if a prima facie case of obviousness has been established based on the prior art.

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Tags: commercial success, Copying, design patents, Objective Evidence, secondary considerations