A dataset of hand selected 2702 images from patents and patent applications has been manually separated into 3 buckets (table ) and is available in the supplementary material. Image-to-structure software Decimer v2.4.0, ReactionDataExtractor v2.0.0, MolScribe v1.1.1, RxnScribe v1.0, MolVec v0.9.8, OCMR, SwinOCSR, and OSRA version 2.1.5 have been downloaded and installed according to instructions as described in the original publications. These programs have been applied as meaningful to the images from the different buckets, as listed in Table .