Penicillin IS an antibiotic. They aren’t two different things. But yes, that’s a fantastic one.
Bluetooth, although not quite on the same level as i was asking about, still is a decent one to list.
C++ was created by a dane, but was created by an American company in America - techhistorylab.com/complete-history-of-cpp-from-1…
Dvd was a multi-national creation - see history section en.wikipedia.org/wiki/DVD
Electric clock is over 100 years
Graphene is a cool material with a lot of potential but so far isn’t close to changing the world - en.wikipedia.org/wiki/Graphene
Helicopter is a good one. Interestingly it was a step-wise multinational evolution, but which doesn’t seem to include the US. en.wikipedia.org/wiki/Helicopter
Linux is made by an American as a personal project for himself while he was in Finland for a few years. Definitely not a Finnish creation. en.wikipedia.org/wiki/History_of_Linux
TNT is over 100 years
Wegovy wasn’t created by a Dane, but glp-1 was first discovered by a dane. Discovering it is obviously a crucial first step, but that’s an entirely different thing than turning it into a medication which happened decades later by other people. See history sections en.wikipedia.org/wiki/Jens_Juul_Holst and en.wikipedia.org/wiki/Glucagon-like_peptide-1 and en.wikipedia.org/wiki/Semaglutide