It has lots of patents but it could be argued that it started out copying and commercially charging for previous innovations and grew by purchasing companies that had invented things. There will however have been some inventions that Microsoft employees did innovate.
He made 5 inventions.
Microsoft and everything associated with the company.
over 1000 inventions from "The Wizard of Menlo Park"
100
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A lot.
100
he made many inventions that were very succsesful and they were made with 19 letters of the alphabet.
This depends on which scientific invention you are referring to. I would say that yes, many inventions make us happy.
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Window prgram by Microsoft
one and that was the steam engine