『Dupe Culture Is a Legal Problem Now: What Caitlin Byczko Taught Us About Trade Dress, TikTok, and the Limits of Brand Enforcement – IP Fridays Podcast – Episode 178』のカバーアート

Dupe Culture Is a Legal Problem Now: What Caitlin Byczko Taught Us About Trade Dress, TikTok, and the Limits of Brand Enforcement – IP Fridays Podcast – Episode 178

Dupe Culture Is a Legal Problem Now: What Caitlin Byczko Taught Us About Trade Dress, TikTok, and the Limits of Brand Enforcement – IP Fridays Podcast – Episode 178

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I am Rolf Claessen and my co-host Ken Suzan and I are welcoming you to episode 178 of our podcast IP Fridays! Today’s interview guest is Caitlin Byczko, who is partner with Marnes & Thornburg in their IP team. Ken is discussing dupe culture with her. Here is the profile of Caitlin Byczko https://btlaw.com/en/people/caitlin-byczko But before we launch into this very interesting interview, I have some news for you: On August 10th, 2026, Navitas Semiconductor filed suit against Renesas Electronics in the Eastern District of Texas, accusing Renesas of infringing four US patents on gallium nitride semiconductor technology through its SuperGaN product lines. The filing follows a countersuit Renesas brought on July 22nd, 2026, accusing Navitas and two of its employees of misappropriating trade secrets. It shows how patent disputes and trade secret claims between competitors are increasingly being fought on multiple fronts at once, and often as tit for tat. It also emerged on August 12th, 2026, that an EPO Board of Appeal had dismissed an appeal by Atlas Global Technologies and ruled that its WiFi patent, EP 3 353 901, case T 1230/25, could not be maintained in any form at all, even though the original opponents, TP-Link and Vantiva, had already withdrawn their oppositions. That knocked out the basis for several parallel infringement suits at the Unified Patent Court, which were then withdrawn. For suppliers and implementers, the takeaway is that fighting a patent held by a non-practising entity can still be worth it, even once the original opponent has thrown in the towel. On August 10th, 2026, the Unified Patent Court in The Hague fully revoked Maxell’s patent EP 2 061 230, covering technology for handing off content to a second device, and at the same time dismissed Maxell’s infringement claim against several Samsung entities, in cases UPC_CFI_251/2025 and UPC_CFI_769/2025. The judges found the patent to be nothing more than an obvious combination of routine adaptations, with no additional technical effect. And now – let’s hear the interview with Ken and Caitlin! A dupe used to be a quiet, slow thing. You’d stand in the cereal aisle, notice the generic box next to the name brand, buy it, tell a friend. Word spread over months. That world is gone. On this episode of IP Fridays, Ken Suzan sat down with Caitlin Byczko, partner at Barnes & Thornburg LLP in Indianapolis, to talk about what’s replaced it: a TikTok-driven economy where a single video can sell out a dupe product within hours, sometimes before the original brand’s own team even knows it exists. Byczko litigates and prosecutes trademarks across retail, fashion, luxury goods, technology, and pharmaceuticals, and she’s watched dupe culture evolve from a marketing footnote into one of the more active battlegrounds in trademark law. Here’s what she told us, and why it matters even if your brand has never heard the word “dupe” used about it. Counterfeit and Dupe Are Not the Same Thing, Legally Byczko opened with what she called the most important distinction in this entire conversation: the difference between a counterfeit and a dupe. A counterfeit uses someone else’s actual trademark. Think of a fake Chanel bag stamped with the interlocking C’s, or a fake Louis Vuitton logo. That’s straightforward infringement, and above certain thresholds, a federal crime. A dupe is different. It mimics the look, feel, or performance of a product without using the name or the logo at all. Elf Cosmetics, Zara, Costco’s Kirkland brand, and Quince have all built parts of their business on exactly this model. No one is pretending to be Chanel. They’re offering something that looks and performs similarly, at a fraction of the price, under their own name. Media and social media use “dupe” and “counterfeit” interchangeably. Legally, that’s sloppy, and it matters, because the two categories trigger completely different legal analyses. If There’s No Logo, What Are Brands Actually Suing Over? This is where trade dress comes in. Trade dress protects the overall look and feel of a product: packaging, color combinations, shape, label design. Byczko pointed out that most of us interact with trade-dress-protected products every day without realizing it. The test is likelihood of confusion. Courts look at how similar the products actually look, how sophisticated the shoppers are, and whether there’s real evidence that people were confused. Byczko flagged one case as a genuine roadmap for this area: Van Leeuwen v. Rebel Creamery, an ice cream trade dress dispute that came out of the Eastern District of New York. In her view, the strength of that case came down to how precisely the brand defined its trade dress for the packaging. That precision, she said, did a lot of the work toward the outcome. She’s also watching Lululemon v. Costco, which she expects to be significant partly because it doesn’t rely on trademark and trade dress ...
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