One patents devices or plans for devices - the US erred when it decided that practices and algorithms were "patentable". Last I checked, hardly anyone else allows that kind of patent.
One has a *reasonable* length of time for copyright - currently copyright is fundamentally broken.
Trademarks seem to be in relatively good shape.
"Intellectual property" is a stupid hypothesis, the idea that an idea can be "owned" when the instant it is exposed it is replicated. It is an indication of what was a temporary blip on innovation when some corporations were able to act as content gatekeepers and make a profit off of the creators and the consumers.
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