A patent is an intellectual residence correct that gives the holder, not an working correct, but a proper to prohibit the use by a third celebration of the patented invention, from a particular date and for a restricted duration (normally twenty years).

Some countries could at the time of registration problem a "provisional patent" and may possibly grant a "grace time period" of a single yr which avoids the invalidity of the patent to an inventor who disclosed his invention just before filing a patent in a non-confidential basis with the benefit of permitting speedy dissemination of technical...