Bitcoin Hardware Wallets, Patent Criteria, and Defense Against Patent Trolls

This chapter explores the advantages of using a Bitcoin hardware wallet called cold card, including its air gapped functionality and high level of security. It also delves into the requirements for obtaining a patent, such as utility, inventorship, novelty, and non-obviousness, while emphasizing the need to demonstrate prior art to avoid overly broad patents. Additionally, it highlights the challenges of defending against patent troll organizations due to the costly nature of defense and the presumption of validity given to patents.