A
SECTION A — HUMAN NECESSITIES
  
HEALTH; LIFE-SAVING; AMUSEMENT
 A62
LIFE-SAVING; FIRE-FIGHTING (ladders E06C)
 A62D
CHEMICAL MEANS FOR EXTINGUISHING FIRES; PROCESSES FOR MAKING HARMFUL CHEMICAL SUBSTANCES HARMLESS, OR LESS HARMFUL, BY EFFECTING A CHEMICAL CHANGE; COMPOSITION OF MATERIALS FOR COVERINGS OR CLOTHING FOR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; COMPOSITION OF MATERIALS FOR TRANSPARENT PARTS OF GAS-MASKS, RESPIRATORS, BREATHING BAGS OR HELMETS; COMPOSITION OF CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
 A62D

Note(s)

Processes using enzymes or micro-organisms in order to:

  1. liberate, separate or purify a pre-existing compound or composition, or to
  2. treat textiles or clean solid surfaces of materials
are further classified in subclass C12S.  [5]

P:20 A62D 1/00
Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
P:10 A62D 3/00
Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances (devices for rendering harmful chemical agents harmless A62B 29/00; consuming noxious gases by combustion F23G 7/06)
 A62D 3/00

Note(s)

  1. This group does not cover:
    • chemical or physico-chemical type processes where eradicating or diminishing the dangerousness of harmful chemical substances produces useful products (e.g. cement). These types of processes are covered by the appropriate subclass for making the specific product. However, in situations where processes for making products include a subset of process steps with eradicating or diminishing the dangerousness of a harmful chemical substance as its fundamental goal, and this subset is in itself novel and unobvious, this subset is covered by group A62D 3/00.  [2009.01]
  2. In this group the following term is used with the meaning indicated:
    • “harmful chemical substances” are chemical waste substances which are too hazardous or toxic to be discarded in an ordinary municipal landfill.  [2009.01]
P:30 A62D 5/00
Composition of materials for coverings or clothing affording protection against harmful chemical agents
P:40 A62D 7/00
Composition of materials for transparent parts of gas-masks, respirators, breathing bags, or helmets
P:0 A62D 9/00
Composition of chemical substances for use in breathing apparatus