Supplier Spotlight Sponsored by GIA
Tiffany Wins Challenge of LKI Diamond Inscription Patent
The U.S. Patent and Trademark Office’s appeal board has ruled that the two major claims in Lazare Kaplan’s patent for laser-inscribing diamonds are invalid.
Washington, D.C.--The U.S. Patent & Trademark Office ruled that two main sections of Lazare Kaplan International Inc.’s patent for laser-inscribing diamonds are invalid, the latest twist in LKI’s long-running legal battles over this patent.
Back in 2014, Tiffany petitioned the USPTO to do an inter partes review of LKI’s 2002 gemstone micro-inscribing patent. An inter partes review is a procedure that challenges the validity of a U.S. patent and is conducted by the Patent Trial and Appeal Board.
Tiffany’s request came amid a long-running legal battle between LKI and PhotoScribe Technologies Inc. over this same technology.
LKI alleged in a lawsuit filed in federal court in New York in 2006 that PhotoScribe was infringing upon its diamond inscription patent, and the case has seen numerous decisions and appeals over the past 10 years. It was stayed pending the board’s decision and any possible appeals that might follow.
In petitioning the appeal board, Tiffany, which is one of the many companies that uses PhotoScribe’s technology to etch serial numbers on its diamonds that are invisible to the naked eye, argued that LKI’s patent was invalid because it was “obvious,” court papers show, meaning that a person of “ordinary skill” in the art of micro-inscribing could have combined existing patents and teachings to arrive at the same invention.
On April 13, the board issued a 43-page written decision siding with Tiffany and stating that claims one and seven of U.S. Patent No. 6,476,351 belonging to Lazare Kaplan are un-patentable.
What the decision means for Tiffany is that it “can continue to use laser technology to inscribe unique and invisible-to-the-naked-eye serial numbers onto Tiffany diamonds,” the jeweler said in a statement released via one of its attorneys, Wes Musselman of Fish & Richardson.
The Patent Trial and Appeal Board’s decision can be appealed to the Court of Appeals for the Federal Circuit, though it was unclear at press time what LKI will do.
The company’s attorneys did not respond to request for comment on the decision and no one at LKI’s New York headquarters could be reached for comment Thursday morning.
The Latest
Sales will be paused while the relocation takes place over the next few months.
“SIS x MISA Denim and Diamonds” is a collaboration between the designer and celebrity stylist Misa Hylton.
Meet Ben Claus—grand prize winner of For the Love of Jewelers 2023 Fall Design Challenge.
The retailer is moving to a newly designed space in the same shopping center.
Gifts that are unique and thoughtful are top of mind this year, according to the annual survey.
The necklace is featured in the brand’s “Rebel Heart” campaign starring Adam Levine and Behati Prinsloo.
With Ho Brothers, you can unlock your brand's true potential and offer customers the personalized jewelry experiences they desire.
The two organizations will host a joint event, “Converge,” in September 2025.
Big changes appear to be on the horizon for the diamond miner and its parent company, Anglo American.
Padis succeeds Lisa Bridge, marking the first time the organization has had two women board presidents in a row.
Jesse Cole, founder of Fans First Entertainment, shared the “five Es” of building a fan base during his AGS Conclave keynote.
The Royal Oak Perpetual Calendar "John Mayer" was celebrated at a star-studded party in LA last week.
The announcement came as the company reported a 23 percent drop in production in Q1.
A double-digit drop in the number of in-store crimes was offset by a jump in off-premises attacks, JSA’s 2023 crime report shows.
Inspired by the Roman goddess of love, the designer looked to the sea for her new collection.
The luxury titan posted declining sales, weighed down by Gucci’s poor performance.
The selected nine organizations have outlined their plans for the funds.
The mining company’s Diavik Diamond Mine lost four employees in a plane crash in January.
The crown introduced a dozen timepieces in Geneva, including a heavy metal version of its deep-sea divers’ watch.
Emmanuel Raheb recommends digging into demographic data, customizing your store’s communications, and retargeting ahead of May 12.
Located in the town of Queensbury, it features a dedicated bridal section and a Gabriel & Co. store-in-store.
A 203-carat diamond from the alluvial mine in Angola achieved the highest price.
Ruser was known for his figural jewelry with freshwater pearls and for his celebrity clientele.
The “Rebel Heart” campaign embodies rebellion, romance, and sensuality, the brand said.
Editor-in-Chief Michelle Graff shares the standout moments from the education sessions she attended in Austin last week.
The overhaul includes a new logo and enhanced digital marketplace.