The best way to practice an invention. For example, if an invention works best at a certain temperature, that is the best mode. An inventor is required to disclose the best mode to the patent office.
The best mode indicates the best method or set of conditions that the invention should be operated, made or used under. The inventor must always describe the invention in its entirety; he or she is not allowed to hide the best mode from the public.
A condition for the grant of a patent. An inventor must describe the best method he or she knows for carrying out the invention.