SOLID-CHEM has a long-standing experience, predominantly in the field of solid-state investigations with a special focus on pharmaceutical ingredients. Our prime goal in the role of a university spin-off in modern laboratories in the technology center at the Bochum University Campus is to provide cross-linked analytical expertise. We apply numerous spectroscopic and diffraction methods, thermochemistry and (thermo) microscopy, humidity and water determinations, and ‘stress’-storage. Several crystallization methods (rational design, ‘high throughput’) are used to detect and investigate polymorphs, co-crystals, salts, and solvates. They are preferentially targeted at patent issues or expert opinions at patent infringements and claim settlements.