This is an old revision of the document!
Invention is the means by which you produce blueprint copies for Tech 2 items and ships in EVE, which can then be sold on the market, or (more popularly) be used to manufacture those items for sale or personal use in the game. A player using the invention process takes a blueprint copy (BPC) for a Tech 1 item, adds certain specialized equipment, and attempts to create a BPC for a corresponding Tech 2 item. Although it sounds simple, invention can be very expensive and difficult to do successfully. The (hopefully) created BPC will have a single run on a ship BPC, and 10 runs on everything else. It will have ME -2% and TE -4%. These values are regardless of those on the input T1 BPC. The Runs, ME and TE levels on the created BPC can be adjusted using decryptors (see optional items below).