I don't know a lot about criminal cases of blasphemy. In my country, blasphemy is considered rude in many circles, but it's a social stigma rather than a criminal act. Because my country does not have a state religion, I think it would be very hard for it to enact laws against blasphemy. From the
Wikipedia article on blasphemy, it seems that some of the older laws about blasphemy in some countries are instead being replaced or updated with laws about religious hate speech. They seem to be moving from disallowing insulting language about a god to disallowing insulting language about that god's followers.
However, you spoke more about criminal cases. From what little I've read, blasphemy as a criminal action really only shows up in those countries that have a state religion or that have an active majority-faith. It's pretty much disappeared in the United States. The last US conviction for blasphemy, for example, was in 1928, and the man was fined $25 dollars and served about a month in jail.
Pakistan has the most stringent of modern anti-blasphemy laws, and includes a death penalty if the case is severe enough.
Unfortunately, I cannot really answer your specific question other than to give you that sort of background. In general, modern Christians do not have active anti-blasphemy laws in civil society. We do tend to expect respectful religious dialogue socially, but some blasphemous "stress expressions" are accepted as just words and not truly meaningful in some Christian families. In my family, we try to substitute silly expressions when we need an expletive, like "fudge nuts" or "sugar!" Other families do different things.
I'm not sure if that gets to the heart of your question. Please let me know if I can clarify further.