Amazing as it may seem, I have seen OE brand parts. I happened to stop into a hole in the wall shop in Aruba because it had BOSCH written all over it. The owners name turned out to be Bosch. I saw a number of boxes of front end and clutch pieces (about all they did) with that brand on them.
I got a personal chuckle at the name at the time.
To me it is a name steeped in deception, created for the sole purpose of misinforming ignorant consumers. It obviously would never be used in the US as we have smarter consumers than that.
They might be good filters but I wouldn't take a chance with my customers cars let alone my own. There is a shelf life to paper filters and that would be another reason not to buy a pig-in-a-poke.
Bosch Master, ASE Master, L1
33 years MB technician