IPC Subgroup
B01J 19/32 Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
Introduced: January 1990
Last revised: January 2006
Full Title
Chemical, physical or physico-chemical processes in general; Their relevant apparatus > Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- Subclass:
- CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS