Tiffany & Co. has convinced the United States Patent Trial and Appeal Board (PTAB) to review Lazare Kaplan International’s patent for laser-inscribing diamonds, currently the subject of long-running litigation. The dispute between the two prominent, and often-litigious, industry names was revealed in LKI’s Sept. 1 filing with the Securities and Exchange Commission. Tiffany & Co. has convinced […]
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