A startup is a company with a technical focus. Therefore, the founder of a startup will first familiarize himself with the existing technology and study its characteristics, especially its disadvantages, in detail. In the next step,the founder will identify a technical task that overcomes the disadvantages of the current technology. The founder must also conduct a business evaluation to determine whether solving this task will lead to a product for a sufficiently large market. After that, the creative process of developing an invention begins. The discovered technical idea must be examined to ensure it can be used without infringing on third-party patents and whether it can be protected by its own patent. Furthermore, the startup founder should consider specialized embodiments that are suitable for particular applications. These embodiments can open up additional markets and enrich the own patent application. This can facilitate a faster patent grant. Registering a trademark is also recommended for the startup founder. The book explains each of these steps in detail. The main focus of the technical book is the development of a technical idea based on existing technologies and its protection through patent, trademark, and design law.