I have found a patent that has a spelling error and its part of the DEFINITIONS section of the patent. To be more precise its actually the definition of the product used and the title by which it is known worldwide. As you can see I don't want to mention the specific patent or product.
Is the patent still valid?
So the error is that the term being "defined" in the patent is actually misspelled? Something like:
As used herein, the word "Ez-Wipe" means a sheet product with ...
You say the misspelled word is the "title by which the product is known worldwide"? Are you talking about a trademark?
You've piqued my interest, which is why I'm asking these questions. But the threshold question is this: is the misspelled term in the *claims* ? If not, the error may be irrelevant.
Another factor to consider: does the misspelling turn the word into *another* word ... ie, "google" misspelled as "goggle"?
Note that even if the misspelling is a problem, the patent does not automatically become invalid. That is, the patent would have to be challenged in a judicial proceeding, the result of which might be that one or more claims are found invalid. Moreoever, I think this sort of error would have to be challenged in a court, as opposed to an administrative panel (ie, PTAB).