Long bridge, i.e. cp or analog where the bridging unit linking the

Official title: Long bridge, i.e. Cp or analog where the bridging unit linking the two Cps or analogs is composed of at least two atoms which are not part of a cycle and which are not an ethylene bridge

C08F2420/12 (Long bridge, i.e. cp or analog where the bridging unit linking the) appears on 37 US grants and 44 published applications in this corpus.