TY - BOOK N2 - Innovation researchers currently make use of various patent classification schemas, which are hard to replicate. Using machine learning techniques, we construct a transparent, replicable and adaptable patent taxonomy, and a new automated methodology for classifying patents. We contrast our new schema with existing ones using a long-run historical patent dataset. We find quantitative analyses of patent characteristics are sensitive to the choice of classification; our interpretation of regression coefficients is schema dependent. We suggest much of the innovation literature should be carefully interpreted in light of our findings. AB - Innovation researchers currently make use of various patent classification schemas, which are hard to replicate. Using machine learning techniques, we construct a transparent, replicable and adaptable patent taxonomy, and a new automated methodology for classifying patents. We contrast our new schema with existing ones using a long-run historical patent dataset. We find quantitative analyses of patent characteristics are sensitive to the choice of classification; our interpretation of regression coefficients is schema dependent. We suggest much of the innovation literature should be carefully interpreted in light of our findings. T1 - That’s classified!Inventing a new patent taxonomy AU - Billington, Stephen D., AU - Hanna, Alan J., JF - Industrial and Corporate Change, VL - Volume 30, Issue 3 LA - eng ID - 47930 KW - Patents KW - Innovation KW - Patents SN - 0960-6491 (Print) SN - 1464-3650 (Online) TI - That’s classified!Inventing a new patent taxonomy LK - https://doi.org/10.1093/icc/dtaa049 UR - https://doi.org/10.1093/icc/dtaa049 ER -