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IPC Main Group
G12B 15/00

Cooling

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PHYSICS
Class:
INSTRUMENT DETAILS
Subclass:
CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR

Filing statistics

IPC G12B 15/00 belongs to the parent subclass G12B, which recorded 5,713 patent applications worldwide between 2013 and 2023. Annual filings declined from 511 in 2013 to 321 in 2023 (-37%), peaking at 701 applications in 2020. The most active applicants in class G12 are HEWLETT-PACKARD DEVELOPMENT COMPANY (90 applications), ROBERT BOSCH (46 applications) and SICK (26 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

COOLING of instruments

3 direct subcodes

Child Classifications

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  • G12B 15/02 by closed-cycle fluid-circulating systems
  • G12B 15/04 by currents of fluid, e.g. air, in open cycle
  • G12B 15/06 by contact with heat-absorbing or radiating masses, e.g. heat-sink

Top Applicants

Top 10 applicants by patent filingsfor class G12, 2013–2023, worldwide · Source: EPO PATSTAT

  1. HEWLETT-PACKARD DEVELOPMENT COMPANY US 90
  2. ROBERT BOSCH DE 46
  3. SICK DE 26
  4. TIANJIN UNIVERSITY 24
  5. CHINESE ACADEMY OF SCIENCES 23
  6. NSK 22
  7. CARL ZEISS SMT DE 22
  8. ENDRESS + HAUSER & COMPANY DE 21
  9. SUZHOU MICRO AUTOMATION TECHNOLOGY COMPANY 20
  10. AUDI DE 20