Patent thickets refer to a dense web of overlapping intellectual property rights that a company or individual must navigate through in order to commercialize new technology. This concept is particularly relevant in the context of how governments can encourage innovation, as patent thickets can create barriers to entry and stifle technological progress. Patent thickets arise when companies or inventors obtain numerous related patents on incremental innovations, making it difficult and costly for others to develop and market new products without infringing on these patents.