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While code is protected as a literary work, the functional "mechanics" of a game may fall under different legal standards than its artistic assets.

A photograph of a dress is protected, but the right to manufacture that physical dress design is not exclusive to the artist under copyright. 121010346_1559680990882773_7030480718447979623_...

You cannot copyright the "shape" of a dress, but you can copyright an original fabric pattern printed on it. While code is protected as a literary work,

Designs for useful articles that don't qualify for copyright may still be eligible for protection under Federal Patent Law . Examples of Separable Expression Designs for useful articles that don't qualify for

If you're looking for something different, are you asking about: for a specific product you've designed? How to register a creative work with the Copyright Office? General productivity or "useful" life advice articles? Useful Articles - Copyright

For more details on specific registrations, you can visit the Official U.S. Copyright Office or check legal definitions at the Cornell Law School Legal Information Institute .