Identify the "working requirement" established in many countries that effectively prevents inventors from patenting inventions in countries in which they have no intention of setting up production. Multiple choice question. As part of the patent application process for an invention, the inventor must provide patent examiners with drawings of the invention. An invention should be manufactured in the country in which a patent was granted within a certain time period from the time the patent is granted. Publication of information about an invention before applying for a patent for the invention should bar the right to the patent. To apply for a patent for an invention, the inventor must explain how to make the invention and what it does that makes it a new invention