sentences:  He holds various international patents (e.g.Lock-Keeper, tele-TASK, and Tele-Board), and is editor-in-chief of the two scientific E-journals "Electronic Colloquium on Computational Complexity" (ECCC) and "Electronic Colloquium on Design Thinking Research" (ECDTR), of the "IT-Gipfelblog", and of the tele-TASK portal with several thousands of multimedia lecture recordings by tele-TASK.Many lectures and lecture series' of Christoph Meinel are recorded and freely accessible on the Internet via the tele-TASK portal.