To implement the principle of Privacy by Design mentioned in the European General Data Protection Regulation one important measurement stated there is pseudonymisation. Pseudonymous data is widely used in medical applications and is investigated e.g. for vehicular ad-hoc networks and Smart Grid. The concepts used there address a broad range of important aspects and are therefore often specific and complex. Some privacy patterns are already addressing pseudonymity, but they are mostly abstract or rather very specific. This paper proposes privacy patterns for the development of pseudonymity concepts based on the analysis of pseudonymity solutions in use cases.