Gerardus C P Vercoulen, Ronald Groothuijse: Process for preparing a fluorine-doped tin oxide powder. Oce Nederland, Birch Stewart Kolasch & Birch, August 24, 1993: US05238674 (11 worldwide citation)

A fluorine-doped tin oxide powder is prepared by combining a solution of a stannic salt with a solution of a fluoride, separating the tin hydroxide from the liquid and drying it at a temperature not exceeding about room temperature and heating the dried product to at least 500.degree. C., until the ...