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
Introduced: September 1968
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- LIFE-SAVING; FIRE-FIGHTING
- Subclass:
- 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
Description
A62D covers chemical formulations and compositions for fire extinguishment and chemical hazard protection. This includes fire-suppressing agents and powders, chemical detoxification processes that neutralize or reduce the harmfulness of toxic substances, and material compositions for protective equipment such as chemical-resistant clothing, gas mask components, and respirator systems. The subclass encompasses both the active chemical ingredients and the material compositions used in personal protective equipment and breathing apparatus, excluding mechanical fire-fighting devices and the structural design of protective garments or masks themselves.
Additional Content
Fire prevention, fire containment or fire fighting, e.g. portable extinguishers or fire-fighting vehicles
Related Keywords
6 direct subcodes
Child Classifications
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- A62D 1/00 Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D 101/00 Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D 3/00 Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances
- A62D 5/00 Composition of materials for coverings or clothing affording protection against harmful chemical agents
- A62D 7/00 Composition of materials for transparent parts of gas-masks, respirators, breathing bags, or helmets
- A62D 9/00 Composition of chemical substances for use in breathing apparatus
Top Applicants
Top 10 applicants by patent filingsfor class A62, 2013–2023, worldwide · Source: EPO PATSTAT
- SGCC(STATE GRID CORPORATION OF CHINA) 1,604
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,202
- TYCO FIRE PRODUCTS US 906
- NOHMI BOSAI 429
- LG ENERGY SOLUTION KR 414
- HOCHIKI CORPORATION 408
- HUBEI JI'ANDUN FIRE-FIGHTING TECHNOLOGY COMPANY 374
- HONEYWELL INTERNATIONAL US 355
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 346
- FISHER AND PAYKEL HEALTHCARE NZ 305