I do not know if Sony has started selling RF glasses, however they are a member of the "Full HD 3D Glasses" Initiative. There are two types of standards for those one for IR glasses and one for RF glasses. Yes, if it is important glasses manufacturers can make glasses that are compatible with both - even in the same pair of glasses.
Both Panasonic and Samsung have over the course of the 3D years used both IR and RF systems. The Panasonic IR protocol is different than the Samsung IR protocol, and both are different than the Sony IR protocol, however all three of these protocols are support by the "Full HD 3D Glasses" initiative. Glasses made to this initiative should be compatible with all three protocols.
Sony PS3 3D Glasses are billed as "universal" which most likely means they are compatible with all three of the above PLUS several other IR protocols that have been used by other manufacturers. However, and I can be incorrect, I believe that the Sony IR 3D Glasses, OTHER than the PS3 Glasses, are still one protocol glasses - unless they have introduced new IR glasses.
Since Sony had not introduced RF glasses before joining the "Full HD 3D Glasses" initiative, any RF glasses Sony has since (if any) introduced most likely are the same Bluetooth as Panasonic and Samsung RF (Full HD 3D Glasses RF).