Wayne Parham Messages: 18710 Registered: January 2001
Illuminati (33rd Degree)
We didn't make those and I'm not familiar with them. We've had the federally registered trademark for both the "π" symbol and "pi" word mark in Class 9 for several years. We first used in commerce in 1979. So since then, there has only been one legitimate brand of "Pi Speakers" that is recognized.
That said, some manufacturers use the mark without knowing. I've had to police the mark several times since the 1970s. Usually, they immediately stop production and change their brand name to prevent name confusion. But not always, as this example shows.
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