No, that would be impossible for me to investigate. Just trying to be helpful. Don't buy them if you have that concern.
Let me rephrase so that it doesn't feel like I am somehow impugning your character (that was not my intent):
I have been reading about counterfeit filters for other cars, specifically GT500's. Due to this, I might be worried that an eBay purchase or even an Amazon 3rd party purchase (where one owner bought his fake oil filter) may not provide you with an authentic Motorcraft filter.