It could be partially true! As the invention , discovery or technology development happens only once and cannot happen twice, but the same technolgy is refined or upgraded over period of time by several different people/companies/countries. But this is called business. This is different in nuclear business and it varies as it is not allowed to sell this to anyone except for the 5 nuclear states. It is the root basis of the NPT which India think rightly that it is descrimintory in nature and hence refused to sign. Even India first atomic power reactor Cirrus was installed and developed by US, which was used by India for first nuclear test in 1972
But this does not give Mr. khan the right to start selling nuclear technolgy to every country which is willing to pay him
