This refers to any business that is focussed primarily on the purchase of patent rights for products with the sole intent of profiting from it by stifling competition or filing patent infringement claims. This is in contrast with other more genuine businesses that purchase patents to manufacture their own products for the market. A company engaged in patent trolling does not care much about developing its own products using the patent. Instead, it is focussed on taking advantage of loopholes in the patent law to sue companies with similar patents for patent infringement, thereby profiting from it.
