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The term patent family is generally used to describe a set of patents that cover the same invention but which are filed with different patent authorities. Here instead we look at finding groups of patents within a single authority (the USPTO) where the patents...
TLDR; Don’t ever use __lzcnt without a corresponding __cpuid check.I recently ran into a problem with a port of some g++ code to MSVC (2013). It was doing some bit-twiddling and needed an operator to count the leading zeros. It turns out that MSVC provides...
Earlier posts considered exact matches to sequence representations in PubChem. Now, let’s look at what should be considered similar matches. It is a failing of structural fingerprints that (to a first approximation) all oligopeptides are similar to all...

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I attended the ever-excellent Sheffield Cheminformatics – sorry – Chemoinformatics Conference last week where I presented a poster on Sugar & Splice, Macromolecules or Big Small-Molecules? Handling Biopolymers in a Chemical Registry System...
The example source code often provided with cheminformatics librariesto demonstrate the available functionality often try to address twoconflicting requirements. On the one hand, these attempt to bepedagogical teaching examples, explaining how to perform a...
Wikipedia is a highly useful source of Chemistry and also of chemical nomenclature. A limitation in chemical name to structure software, such as OPSIN, is that trivial names that are similar to systematic names may be misinterpreted if the program has never...

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Conferences are all about communication. But what can and cannot be communicated at a conference, or rather what should and should not? Probably top of the list of "should not" is to use inappropriate examples or images to liven up proceedings. Recently I attended...
My cunning plan to get Roger Sayle to write down some of his findings has come to fruition. NextMove Software now has its own blog with posts from Daniel Lowe, myself and Roger on ChemSketch to Mol conversion, visualising a hierarchy of substructures, improving...