CPC Main Group
H01J 9/00 Apparatus or processes specially adapted for the manufacture of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
12 direct subcodes
Child Classifications
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- H01J 9/02 Manufacture of electrodes or electrode systems
- H01J 9/20 Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J 9/236 Manufacture of magnetic deflecting devices for cathode-ray tubes
- H01J 9/24 Manufacture or joining of vessels, leading-in conductors or bases
- H01J 9/38 Exhausting, degassing, filling, or cleaning vessels
- H01J 9/40 Closing vessels
- H01J 9/42 Measurement or testing during manufacture
- H01J 9/44 Factory adjustment of completed discharge tubes or lamps to comply with desired tolerances
- H01J 9/46 Machines having sequentially arranged operating stations
- H01J 9/50 Repairing or regenerating used or defective discharge tubes or lamps
- H01J 9/52 Recovery of material from discharge tubes or lamps (H01J9/50 takes precedence)
Top Applicants
Top 10 applicants by patent filingsfor 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