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IPC Main Group
A62B 31/00

Containers or portable cabins for affording breathing protection with devices for reconditioning the breathing air or for ventilating

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
HUMAN NECESSITIES
Class:
LIFE-SAVING; FIRE-FIGHTING
Subclass:
DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING

Related Keywords

reconditioning AIR for breathing in sealed rooms or containersBREATHING APPLIANCES for sealed rooms or containers

Top Applicants

Top 10 applicants by patent filingsfor class A62, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 1,604
  2. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,202
  3. TYCO FIRE PRODUCTS US 906
  4. NOHMI BOSAI 429
  5. LG ENERGY SOLUTION KR 414
  6. HOCHIKI CORPORATION 408
  7. HUBEI JI'ANDUN FIRE-FIGHTING TECHNOLOGY COMPANY 374
  8. HONEYWELL INTERNATIONAL US 355
  9. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 346
  10. FISHER AND PAYKEL HEALTHCARE NZ 305