The only Good Software Patent is an Invalid Software Patent

This clever info graphic provides a brief overview of the problem of patents in the US, particularly software patents, and the threat posed by NPEs (Non-Practising Entities), companies who hold patents (bought from innovative companies) with the sole purpose of generating revenue by suing (or threatening to sue) other companies, for a settlement and/or a royalty-based licensing agreement. NPEs are a despicable parasite (and an unlimited liability) on the software industry, where nearly every concept is covered by someone's patent, and where the usual rules of "non-obviousness" and "no prior art" are never applied.

patents infographic

Source: http://frugaldad.com