Once something is made public (discussed, presented, or published) it is considered state of the art and is no longer novel. Therefore, it cannot be protected or patented.
You can file a patent application on behalf of yourself or your co-inventors.
A patent application often includes the following primary sections: Invention Title. The title's objective is to provide a clear understanding of the invention or idea. Prior Art: Context and Novelty. Invention Summary. Drawings and Descriptions. Detailed Description. Claims. Scope. Characteristics.