Patentability: subject matter issues

  • "Any thing under the sun that is made by man"

  • Statutory class--process, machine, manufacture, composition of matter or an improvement thereof

  • Cannot contravene the public good

  • Cannot be a scientific or mathematical theory

  • Cannot be a property or phenomenon of nature

  • May be a method of doing business

  • May be a human treatment method

  • Must have at least one believable use

  • Must not be useful solely as an atomic weapon