The RA (Radicalness) indicator is calculated by counting the number of patent citations a patent has to cite as prior art (backward citations) taking into account whether a cited patent has cited frequently itself (cited backward citations). Finally, counts are normalized by year, country of jurisdiction and main IPC/CPC.
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/High/ |
| /Low/ A low RA value indicates a lower degree of novelty in a certain technological area. The patent was filed in a so called “patent thicket” where a dense web of patents already protected a certain technology. |