H01J 29/07 Shadow masks for colour television tubes
Introduced: July 1974
Title
Titles differ between systems:
IPC: Shadow masks for colour-television tubes
CPC: Shadow masks for colour television tubes
Full Title
Full titles differ between systems:
Details of cathode-ray tubes or of electron-beam tubes of the types covered by group > Electrodes; Screens; Mounting, supporting, spacing, or insulating thereof > Screens for shielding; Masks interposed in the electron stream > Shadow masks for colour-television tubes
Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00 > Electrodes; Screens; Mounting, supporting, spacing or insulating thereof > Screens for shielding; Masks interposed in the electron stream > Shadow masks for colour television tubes
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
Navigate with arrow keys, Enter to open
Top Applicants
Top Applicants (IPC)
Class H01,2013–2023, worldwide · Source: EPO PATSTAT
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
- SAMSUNG ELECTRONICS COMPANY KR 42,206
- LG CHEM KR 21,383
- APPLIED MATERIALS US 20,441
- LG ENERGY SOLUTION KR 20,279
- SAMSUNG DISPLAY KR 19,725
- CHINESE ACADEMY OF SCIENCES 19,400
- TOYOTA MOTOR CORPORATION 18,819
- SGCC(STATE GRID CORPORATION OF CHINA) 18,082
- TOKYO ELECTRON JP 17,634
Top Applicants (CPC)
Class H01,2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG ELECTRONICS COMPANY KR 37,897
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
- APPLIED MATERIALS US 21,640
- LG ENERGY SOLUTION KR 20,770
- LG CHEM KR 19,835
- TOKYO ELECTRON JP 18,519
- ROBERT BOSCH DE 14,595
- INTEL CORPORATION US 13,580
- MURATA MANUFACTURING COMPANY JP 12,151
- SAMSUNG SDI COMPANY KR 12,080