legal zoom.comor more direct with US copyright office.com
Do this: with each and every idea: write a thorough description, make a wonderfully accurate drawing showing measurement distances, thicknesses and show the items all from every side. For each item individually put everything dealing with one item or idea in an envelope and take it to the post office and send it to yourself registered mail when it s delivered sign for it and put it, unopened, into a safety security box and forget about it. Then go about starting your own company to make your idea a reality. If anyone tries to steal your idea your unopened registered mail will hold up in court if you ever need to sue someone for stealing your ideas.