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This article aims to show that knowledge management is centered on an object of knowledge that constitutes the knowledge capital and that the fruitful principle of the former is to preserve, enrich, enhance, share, and transmit the latter. This principle is backed by concepts of formal knowledge modeling applied to knowledge considered to be critical and strategic, concepts backed by the virtuous cycle of knowledge. These concepts are applied through an operational method, MASK. The transition from general knowledge to inventive knowledge leads to inventive knowledge management centered on the inventive intellectual corpus, which is itself at the heart of the upstream part of the innovation process.JEL codes: D83