April 14, 2026 — In a move that has sent shockwaves through the pickleball community, JOOLA, a titan in the racquet sports world, has officially filed patent infringement litigation against 11 rival paddle brands. The lawsuit, centering on JOOLA’s proprietary "Propulsion Core" technology, marks a pivotal moment in the sport's shift from a friendly hobby to a high-stakes, litigious industry.
The Core of the Conflict
The litigation targets a specific engineering design that JOOLA claims was stolen or copied by competitors to mimic the high-performance feel of their "Gen 3" paddles. According to JOOLA CEO Richard Lee:
“Protecting our innovation is not about limiting what others can do – it’s about ensuring the investment, creativity and engineering required to advance this sport are rewarded”.
JOOLA has also filed a complaint with the U.S. International Trade Commission (USITC), which has the power to issue exclusion orders. This could effectively block the importation of infringing paddles into the United States entirely.
The Technical Details: What is a "Propulsion Core"?
As explained in technical breakdowns by industry experts like John Kew, the lawsuit focuses on two primary patents: U.S. Pat. No. 12,465,826 and 12,357,891.
- The "Sushi Roll" Construction: The '826 patent describes a specific layered structure: a central honeycomb core, a "gap" filled with a specific material (often white EVA foam), and an outer frame (a hollow carbon fiber tube often filled with expanding foam).
- The "Diving Board" Effect: JOOLA argues that this specific sequence of fillers and frames creates the unique "trampoline" or "propulsion" effect that defines modern high-power paddles.
- Targeted Brands:
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