Obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds

Official title: {obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation (macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds per se C08G)}

B01J20/262 (Obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds) appears on 854 US grants and 1,165 published applications in this corpus.