In July, the Patent Trials and Appeals Board (PTAB) declined to institute
Inter Partes Review of a design patent for an ornamental design of diamond jewelry. Then, just last week, the Board denied a petition to rehear that earlier decision. These decisions in
Premier Gem Corp. et al. v. Wing Yee Gems & Jewelry Ltd. (IPR2016-00434) demonstrate how failing to introduce into evidence the details of the prior art can be fatal to a claim of anticipation or obviousness. They also offer a reminder that challenged designs and the prior art are to be compared on the basis of “overall visual appearance,” not mere “design concepts.”
Petitioners Premier Gem Corp. and Jay Gems Inc. (collectively, “Petitioner”) petitioned the Board to invalidate U.S. Design Patent No. D618,132 (the “’132 patent”). The patent claims a jewelry design in which a large “full cut” central diamond is surrounded by nine smaller “single cut” diamonds. (As the decision explains, “[f]ull-cut diamonds have more facets than single-cut diamonds, and typically produce a greater sparking effect.”) The two figures of the patent are reproduced below:
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| U.S. Design Patent. D618,132 |