I didn't know German Patent Law worked this way. I wonder if this clause has any actual effect. Is the actual manufacture and use of such inventions also prohibited or does this just mean that nobody in Germany can have a monopoly on such things?
In the novel, when a force 6 storm goes through, they hang out in a bunker and one by one try to remove the watch/bomb so that they can then be free of coercion and also, untrackable in the future.
On the bright side, Science marches on!... if it helps shore up the corrupt local monarchies.