Composition of materials for transparent parts of gas-masks, respirators, breathing bags, or helmets

Introduced: September 1968

Last revised: January 2006

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

Filing statistics

IPC A62D 7/00 belongs to the parent subclass A62D, which recorded 10,174 patent applications worldwide between 2013 and 2023. Annual filings grew from 770 in 2013 to 932 in 2023 (+21%), peaking at 1,023 applications in 2022. The most active applicants in class A62 are SGCC(STATE GRID CORPORATION OF CHINA) (1,604 applications), 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) (1,202 applications) and TYCO FIRE PRODUCTS (906 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

clear view sheets for HELMETScompositions for transparent parts of HELMETS

1 direct subcode

Child Classifications

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A62D 7/02 Clear-view sheets which prevent the formation of water drops or ice

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