The civil jury at the US district court in Manhattan ruled that three out of the four logos did not infringe on Polo Ralph Lauren's trademark and one did.
The US Polo Association and clothing company Jordache said that the decision was a "knockout victory" and they would launch an advertising and marketing campaign for their range.
David Cummings, president of USPA Properties, said: "Since 1984, the US Polo Association has been trying to co-exist with Polo Ralph Lauren, but it appears they wanted nothing more than a monopoly on the sport. That has ended today with this ruling."
Polo Ralph Lauren lawyer Leslie Gordon Fagan claimed that the USPA and Jordanche had sold $32m in merchandise since 2000 by infringing Polo Ralph Lauren's trademark.
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