| Hi Annie,
Copyrighted material is "usually" something like a book or song. A mouthpiece innovation, like the Parduba double-cup,would be patented.
I don't know how you could patent an inner diameter, cup depth, throat size, etc. Also, some of these patents only last for fourteen (14) years or so, depending upon their classification.
Be well.
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PAUL NELSON - Eclipse White Lightning / Getzen Eterna 900 Classic |