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validity × 31patentability × 5
patent-infringement × 3
prior-art × 3
prior-art-request × 2 patent-lifetime × 2
infringement × 2
invalidation × 2
patent-applications × 1
software × 1
novelty × 1
inventorship × 1
patent-services × 1
priority × 1
european × 1
process × 1
expired-patent × 1
utility × 1
description × 1
legal-status × 1
litigation × 1
terminology × 1
scope × 1
protection × 1
priority-date × 1