Hi there, my 5 cents worth:
Ron,
THe term "Queensware" historically belongs to J. Wedgewood, who in 1765 had
refined creamware to a lighter/whiter form that could now be sold in white or
enamelled. His patent of 1765 - "Queensware" - refers to the honour he
bestowed upon his royal patron Queen Charlotte.
I think past this point , the term trickles down and becomes a generic reference
by other manufacturers and archaeologists. But much like "mochaware", which
too is generic now, it originally had a very , very specific definition.
irena