First. A company in whatever country is legally obliged only to that country's law. Export means that company is selling something in his jurisdiction to somebody who is not. That somebody is importer. Importer has to comply with the law of the country he/she is importing. One can not expect that exporter burden is to know all UN members laws.
Second. There cannot be and there is none agreements between Sweden and US which would prevent swedish companies producing something that infringes US-only patents. Also any swedish company can produce anything that is banned in US. I guess absynthe is.
Third. Pay attention to the HTC & Apple cases. Apple is trying to prevent import of HTC phones. That is the key! Apple can not sue taiwanese company of US patent infringement, not in US, not in Taiwan. What they can do is complain to ITC and ban import and that is exactly what they ar doing: http://www.fosspatents.com/2011/12/apple-wins-itc-ruling-of-...
First, A country is legally obliged to follow the laws of all countries in which they do business. For legal purposes, "doing business" means actual physical operations in a country or knowingly and deliberately selling into a country. This is basic international law.
Second. That is not how import/export law works. I do not have time to explain how it applies, so Google it.
Third. Your second statement is correct.
Fourth. Your third statement is not correct. Apple can sue HTC in the U.S. b/c HTC does business in the U.S. Apple chose to pursue this case in the ITC b/c it is asignificantly faster way to achieve its business goals (namely, interfering with a competitor's sales of a product). Patent litigation through the court system is a very slow, years-long process, and could take long enough that Apple would be on the down-cycle again.
Second. There cannot be and there is none agreements between Sweden and US which would prevent swedish companies producing something that infringes US-only patents. Also any swedish company can produce anything that is banned in US. I guess absynthe is.
Third. Pay attention to the HTC & Apple cases. Apple is trying to prevent import of HTC phones. That is the key! Apple can not sue taiwanese company of US patent infringement, not in US, not in Taiwan. What they can do is complain to ITC and ban import and that is exactly what they ar doing: http://www.fosspatents.com/2011/12/apple-wins-itc-ruling-of-...