After completing creative (technical) work it is great to receive financial reward and the inventor is satisfied or very satisfied ... However, if the expectations of the inventor cannot be satisfied, his wishes are confined by the Law on employees' inventions to create a balance of interests between him and the employer.
Pursuant to the German Law on employee's inventions (created in 1957, updated in 2004 and finally in 2009), a creator (inventor) has the right to his own invention.