Determine whether you need to follow legal restrictions. Certain products (e.g., medicines, chemicals, and agricultural fertilizers and pesticides) must be approved by a federal agency (such as swissmedic or the Federal Office of Public Health) in order to protect public health, the environment or other important resources before they can be produced or marketed. Patent owners also require approval in order to bring certain products onto the market. This is because a patent does not automatically confer on its owner the right to use an invention. The patent law does not govern whether and under which conditions an invention may be used. For that there is other applicable legislation, such as a federal drug act or gene technology act.