This document provides an overview of blockchain technology and emerging applications. It discusses blockchain components and reference architecture. It also covers blockchain platforms like Ethereum and Hyperledger. The document outlines various blockchain use cases and emerging technologies like blockchain 3.0. It explores blockchain integration with IoT, AI, big data and 5G. The document also analyzes the blockchain patent landscape and provides insights from patents in different application areas like healthcare, manufacturing and finance. It identifies the top blockchain startups and examines their patenting activities and fundraising. Finally, it offers suggestions for blockchain software patent development strategy and best practices for claim drafting.