Originally Posted by Kwikwi
?lost me. My post was refering to brand names of glass, ie Blenko, Wimberly etc. There are some who actually patent their items but outside of them it's a freeforall on designs.
ya i was getting at techniques, but even the brand names of glass have started to get used in general, "pyrex" is used to talk about most borosilica glass even if it is not truly pyrex