"With patents to the stars"

For those of you that are interested in patents relating to astronomy and can read German - which admittedly might narrow the group of interested readers - the German Patent and Trademark Office (DPMA) offers a entertaining little gallery on its website relating patents and astronomy called "With patents to the stars" (Mit Patenten zu den Sternen).

This gallery was created to celebrate the UNESCO's International Year of Astronomy 2009. Given the navigation on the DPMA's website is reminiscent of searching Easter eggs, here are the links that take you directly to the relevant parts of the gallery (all in German):

Short introduction
Patent history of telescopes
Travel to space
Living and working in space
Literature and sources