using optics

Introduced: January 1985

Full Title

Full titles differ between systems:

IPC:

Arrangements for indicating or measuring on machine tools > using optics

CPC:

Arrangements for indicating or measuring on machine tools (for automatic control or regulation of feed movement, cutting velocity or position of tool or work B23Q15/00) > using optics

Of 7 combined children, 0 exist in both systems.

7 codes are CPC-only extensions.

Child Classifications

Navigate with arrow keys, Enter to open

B23Q 17/2404 CPC only CPC only
B23Q 17/2409 CPC only CPC only
B23Q 17/2414 +2 CPC CPC only CPC only
B23Q 17/2428 CPC only CPC only
B23Q 17/2433 +3 CPC CPC only CPC only
B23Q 17/2452 +3 CPC CPC only CPC only
B23Q 17/248 +3 CPC CPC only CPC only

Top Applicants

Top Applicants (IPC)

Class B23,2013–2023, worldwide · Source: EPO PATSTAT

ITW (ILLINOIS TOOL WORKS) US 3,407
FANUC JP 3,120
DISCO ABRASIVE SYSTEM 2,777
HAN'S LASER TECHNOLOGY INDUSTRY GROUP COMPANY 2,629
ROBERT BOSCH DE 2,468
FANUC 2,273
DISCO CORPORATION JP 2,267
GE (GENERAL ELECTRIC COMPANY) US 1,611
CHINESE ACADEMY OF SCIENCES 1,534
ISCAR IL 1,499

Top Applicants (CPC)

Class B23,2013–2023, worldwide · Source: EPO PATSTAT

ITW (ILLINOIS TOOL WORKS) US 3,642
DISCO CORPORATION JP 3,316
FANUC JP 3,111
ROBERT BOSCH DE 2,711
FANUC 2,163
GE (GENERAL ELECTRIC COMPANY) US 2,113
ISCAR IL 1,516
SIEMENS DE 1,459
LINCOLN GLOBAL US 1,433
KOBE STEEL JP 1,423