ZeroAvia, an aviation startup, has announced the granting of 45 new patents essential for the development of large hydrogen aviation engines, with an additional 200 patents in progress. These patents are crucial for creating practical hydrogen-powered aviation engines, including a hydrogen-electric turboprop motor capable of generating 5MW of power. The potential cost savings for airlines using these engines are significant due to lower maintenance requirements and the cost-effectiveness of hydrogen fuel compared to traditional kerosene. The company's focus on securing intellectual property highlights the value it places on innovation in the aviation sector. Notably, major players like Airbus and Boeing are also investing in hydrogen-powered aircraft technology, indicating a shift towards cleaner and more sustainable aviation solutions. ZeroAvia's Founder and CEO, Val Miftakhov, sees a bright future for companies pioneering hydrogen propulsion systems, emphasizing the benefits of cleaner, more affordable, and highly efficient air travel. While some skepticism remains about the practicality of hydrogen as a transportation fuel, especially on a large scale, the aviation industry seems optimistic about its potential. The increase in patents and developments in hydrogen aviation technology suggest a growing trend towards cleaner energy solutions in the aviation sector. With the advent of hydrogen-ready airframes from major manufacturers, the competition in this space is heating up, paving the way for a more sustainable future in commercial air travel.