Invention ideas are not only for inventors. They can be for anyone who has a great idea for something new. The use of invention ideas is to help you come up with your own inventions and patent them. There are many things you can do with the help of invention ideas as well as some that you should not do at all.
Make sure that you do not go around telling everyone about your idea because it is considered to be confidential information and if someone else comes up with the same thing or even worse steals it from you, then there will be nothing that can be done about it.
The best way to find out if someone else has come up with the same thing is by going through the patent office website where they list all patents that have been filed in order to protect them and their investors from other people who may try to steal their idea or copycat it. This way if someone steals your idea then you will know right away so that you can take action against them immediately before they get any further than just stealing your idea out of curiosity.
Invention ideas also contain how-to guides on how to build certain things such as robots or other complicated machines that require specific parts and tools along with diagrams on how each part should look like when finished so that anyone can follow the instructions and build their own. This is a very useful resource for people who have the desire to create something new but do not have any prior experience building such things and are unsure of how they should go about doing so.
In some cases, the inventor of a certain invention will post their idea invention online and allow other people to use it as long as they give credit to the original creator. This is a great way for people with similar interests to work together and combine their creativity into something even more amazing than before.
Inventions are designed for different purposes, some being more practical than others depending on what you need it for.