Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
A62D 101/28

containing oxygen, sulfur, selenium or tellurium, i.e. chalcogen

Introduced: January 2007

Full Title

Harmful chemical substances made harmless, or less harmful, by effecting chemical change > Organic substances > containing oxygen, sulfur, selenium or tellurium, i.e. chalcogen