Google Patents - Basic Keyword Patent Search
Blockai - Protect and claim ownership of your digital creations
Blockchain Demo - Visual demonstration of blockchain technology
Harvel - Copyright protection tool scanning the web for illegal copies of your content, sending DMCA Takedowns to Google and hosting sites, in order to prevent revenue leak and increase sales.
Patent Monk - The patent search engine you always wanted to exist
Blockchain Startups Map - Map & searchable database of 430 companies in 64 categories.