Now let's say your volcano tissue-box holder spritzes an almost invisible layer of soothing cream onto the tissues as it "erupts" from the holder, keeping the tissue beneath it dry and sanitized. For this invention, you may be able to get a utility patent. Utility patents protect the actual mechanical, chemical, computer or process design of an invention. (When applying, you must include these design specifications with your application.)

Excerpted from Starting a Home-based Business