IPC Subgroup
G12B 1/04 Hollow bodies having parts which are deformable or displaceable under pressure, e.g. Bourdon tubes or bellows
Introduced: September 1968
Last revised: January 2006
Full Title
Sensitive elements capable of producing movement or displacement for purposes not limited to measurement; Associated transmission mechanisms therefor > Hollow bodies having parts which are deformable or displaceable under pressure, e.g. Bourdon tubes or bellows
Classification Context
- Section:
- PHYSICS
- Class:
- INSTRUMENT DETAILS
- Subclass:
- CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
Related Keywords
BELLOWS in instruments in generalBOURDON in instruments in general
Top Applicants
Top 10 applicants by patent filingsfor class G12, 2013–2023, worldwide · Source: EPO PATSTAT
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 90
- ROBERT BOSCH DE 46
- SICK DE 26
- TIANJIN UNIVERSITY 24
- CHINESE ACADEMY OF SCIENCES 23
- NSK 22
- CARL ZEISS SMT DE 22
- ENDRESS + HAUSER & COMPANY DE 21
- SUZHOU MICRO AUTOMATION TECHNOLOGY COMPANY 20
- AUDI DE 20