If I make profit by scan a book for someone who already owns them, will it be illegal?

Look, to be pragmatic, in your case no one is ever going to know or care about you scanning one book. But if this was a proposed business venture,...

How do I give other people permission to build and sell my product using my brandname, etc here and international?

I agree with the others here. The most likely scenario will be through proper licensing transactions, but at this point I think I or any other...

Can I file my own trademark paperwork or Do I need a lawyer?

Of course you can do it yourself, in the same sense that I am free to work on my own auto transmission. If I happen to know exactly what I'm doing...

Can it be argued, that goods which are technically in the same class, are not confusingly similar?

Of course. All the details matter. How saturated are the terms used? Can you argue that the market impression is different enough given proper...

My colleagues offered great insights. Yes he can be sued. What is more likely is that the team associations will send a cease & desist letter...

Someone has registered a trademark for a business name I have been using for many years. Do I have any options here?

My colleagues offered great insights and they explained your common law rights. Regards to what you can do, you have options, but it will require a...

Can I reference fictional characters in a non-fiction book for illustrative purposes?

I think the take home point from the answers provided by my colleagues is that you need to get a proper opinion before you make the investment....

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Individuals collectively protecting intellectual property

This is rather confusing. If you are co-authors then either of you can potentially commercialize the IP without the other's permission. It would,...

How do I avoid getting sued for user ideas?

As noted, ideas are not protectable. But if their contributions are more substantial than just ideas you need to be concerned that they could...

There needs to be a nexus between the jurisdiction and the nature of the complaint. If, for example, you are in the US and there an infringer in...