In writing the literature review, the purpose is to convey to the reader what knowledge and ideas have been established on a topic, and what their strengths and weaknesses are. The literature review must be defined by a guiding concept (e.g. your research objective, the problem or issue you are discussing, or your argumentative thesis).
You can register your copyright with the U.S. Copyright Office. Registration creates a formal, federal record of your creative work and can be used in court as evidence of your creation in the event of a legal challenge to copyright ownership. You can register your work online at the Electronic Copyright Office. At time of publication the fee for online registration was $35.
The filing fee is only $45, so applying for a copyright should be done as a matter of course whenever possible. With respect to inventions, you should be thinking about getting a patent of some kind. The options are getting a utility patent, getting a design patent or both.