Translation of patentiert

We would love to have you here as our guests! My niece Katja had also many diffculties with the new surroundings. She is really upset with this new change. How was your trip to Italy? I'll keep writing to you!
I just came back from Switzerland. Please give me a week to read the material you sent me. How was your time in Switzerland? Rani already asked me yesterday. Tell me when and where. I'll keep Tuesday free.
The same evening we left Patagonia and flew to the capital of Argentina, Buenos Aires. We have waited a long time for this moment as we have not been in a city for almost two weeks and we usually love the city.