A patent holder has rights during the term of his patent. The patent at issue (U.S. 4303986) is expired, so companies could not be compelled to pay royalties today.
Lans assigned the rights to his patent to another entity, Uniboard AB, which is wholly owned by Lans. It seems that he did this for tax reasons, so I suppose that even Lans would acknowledge himself and Uniboard as separate entities. At least, that's what he would submit to the tax collector. The tragedy here is that Lans filed his suit under his name only without mentioning the patent holder, Uniboard AB, as a party to the suit. It does not matter that Lans is the inventor - he assigned his rights to Uniboard. It does not matter that he owns Uniboard, as they are different entities, particularly in the eyes of the courts (just as they are viewed as different entities to the tax collector).
The distinction between the U.S. and China here is that the U.S. does have a system that allows preservation and enforcement of intellectual property rights. China does have a system for defining intellectual property rights, but enforcement is, quite frankly, a joke.
Lans had rights and screwed up in asserting those rights. While Lans's story is tragic, there is no moral connection between Lans's blundered attempt at asserting his patent rights, and the U.S. government and China.
(I hate to be on the opposite side from you on this one Luc for several reasons. One, having spent several years in Sweden, its country, culture and people will always have a special place in my heart. Two, my youngest boy's name is Lucas.)