Do design patents/copyright cover &quot;remixing&quot; of spare parts? Given a design patent, that covers a specific product. Do I infringe on that design patent, if I take a visible and identifiable spare part (which contains no branding) and use that part in a different product, which I then intend to sell? How about copyright? Reproducing that spare part would probably infringe on the copyright. But what if I just buy the spare part, integrate it into a different product and sell it?
In your example is the spare part the subject of a design patent? I assume it is not. When you combine the spare part to create a “different product” does the finished product resemble the drawings in the design patent? If, in its intended use, the final thing is close enough to the design patent to fall within its scope then you might by indirectly infringing by inducing people to infringe. The scope of a design patent is very difficult to determine reliably. This has nothing to do with how you got the components of your product, just how the completed thing looks. Copyright does not cover products (unless it is a model of a building or a statue or mold for a statue).
Yes, assuming the material was given the standard license. You would be creating a derivative work, and only the copyright owner has the right to authorize creation of a derivative work. See the copyright FAQ for general information. The owner can file a DMCA takedown notice with YouTube and they will by policy notify you of the infringement claim and unless you file a counter-notice (you legally couldn't given the facts you're asserting), they will take it down. The owner can also sue you.
I agree that you have a very strong copyright fair use case. Although the logo is creative and you're using the entire thing, your use is for a nonprofit educational purpose and does not affect the value of the work. The logo is also probably trademarked. But you aren't using the mark in commerce, so I don't think that will be a problem for you.
Seems unlikely that it will "forestall copyright infringement suits". Some jurisdictions, e.g the USA, say that "Works produced by mechanical processes or random selection without any contribution by a human author are not registrable". On the face of it, in such a jurisdiction copyright can't exist in a randomly generated work. Which the TED talk doesn't mention. https://www.youtube.com/watch?v=sJtm0MoOgiU Let's imagine a case in a jurisdiction where copyright can exist in such a work. There is a dispute between two artists or labels. The plaintiff produced a well known tune and accuses the defendant of copying this work. The defendant says the plaintiff didn't have copyright in that work because it wasn't original in the first place, there is a 1200GB TAR file (compressed file) on GitHub that contains all possible single octave, 8-note, 12-beat melody combos, which were produced before the plaintiff's work. The plaintiff says, "like the majority of the population I never heard of GitHub, let alone downloaded, uncompressed a 1200GB file and listened to every melody." That's all aside from plaintiffs or lawyers deciding they have a case or believing the mere threat of civil proceedings will cause the alleged infringer to acquiesce to their demands. I think they are making a point about the law rather than a realistic means of thwarting copyright disputes. It's reasonable of the creators to say there is a finite set of melodies and the likelihood of inadvertently 'creating' the same melody as someone else may be smaller than we think, maybe copyright law has led to some unjust outcomes and led to a chilling effect on music-making.
If soemoen sues you for infringement of a design copyright, it would be a valid defense that the plaintiff had in fact taken the design elements from your prior work, or indeed from the work of a third party, and so had no valid copyright. Proving this may be easy or hard, depending on the specifics of the situation. Registration will prove that your work existed and you claimed it as original on a specific date. It would not be a perfect defense: if the other party claimed that you had copied prior to that date an infringement action could proceed. The effect of registration is somewhat different in US law and the law of various EU countries. In the US, for one thing, one must register before bringing an infringement suit, and the date of registration may affect the availability of statutory damages, and of an award of the costs and fees for bringing suit. Note that the protection offered by a design copyright is limited: copyright will never protect an ide3a or concept, and so only the specific expression of a design can be protected by copyright. What this means will vary in particular cases. Specific artwork or logos will each carry its own copyright, and if they are original creations of yours, you can register them. (These would not be design copyrights, but ordinary copyrights.) You can also obtain a single registration for the website as a whole. It is very unusual for one who copies a work, or elements of that work, to then sue the original creator for infringement. Given the existence of archive services, it is often fairly easy to prove how a site looked on a particular date. Ensuring that your site has been archived as soon as possible would make it easier to show that it was not copied from a later work. Some services will archive a particular site on request.
There is no provision for automatically relicensing infringing works (for example, distributing a program that contains parts covered by the GNU GPL and that is therefore a derived work will not automatically place the infringing program under GPL, even if that is the expected way for derived works to comply with the license. Instead, the derived work becomes at the very least undistributable, as there are competing copyright holders that disagree.
The creator of the derivative work has copyright in the derivative work. The copyright would protect only the new elements of the derivative work. Wikipedia is a good place to start. In the case of a book with updated grammar, depending on the extent of the changes, it would probably be easier to copy the original directly than to eliminate the updates from a copy of the derivative work.
The idea for an app is not subject to copyright. Only the artifacts of the app itself (sourcecode, images, texts, sounds, etc.) can be. So if one only copies the idea and creates their own version of all the other assets, then they are not violating copyright. However, in some cases, ideas can be subject to patents. But patents on software are tricky. First of all, only new ideas can be patented. When a supposed new idea was already published before, then that's called &quot;prior art&quot; and you can not patent it. Then getting a patent means a lot of investment in money and time (which is very different from copyright which you get automatically the moment you make something copyright-worthy). So not everything that could theoretically be patented gets patented. And then, many jurisdictions do not recognize software patents at all, and those which do have different limits on what is and is not patentable when it comes to software. This means patents are rarely a concern when copying the app idea of someone else, but not never. And another possible concern is the third pillar of intellectual property: Trademarks. This protects the name of the app. Trademark law oversimplified forbids to create a competing product with a name which might confuse customers. So if you created StevesSuperCoolAppForCoolPeople and I create StevesSuperCoolAppForCoolPeople - Simplified Edition, then I would be violating your trademark, because my product name sounds as if it was your product, when it is in fact an unrelated product with a similar purpose.