Clear-view sheets which prevent the formation of water drops or ice

Introduced: September 1968

Last revised: January 2006

Full Title

Composition of materials for transparent parts of gas-masks, respirators, breathing bags, or helmets > Clear-view sheets which prevent the formation of water drops or ice

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

Related Keywords

clear view sheets for BREATHING APPLIANCESclear-view sheets for GAS(ES) masks

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