When you sell a mechanical tool, the user can take it apart and construct a similar tool on his own. This will take the advantage of innovation done by the engi

When you sell a mechanical tool, the user can take it apart and construct a similar tool on his own. This will take the advantage of innovation done by the engineer without paying him much. The patent protects the engineer from this exploitation. The users cant take apart a closed source software and reconstruct it. Now a days with few of the arm cores I have worked with, you cant even step through some proprietary code which is running. When you already have protection why would you want a patent. Another thing is the large companies abusing the patents and threatening some new companies.