Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup
H01J 49/02

Details

Full Title

Particle spectrometers or separator tubes > Details

9 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • H01J 49/08 Electron sources, e.g. for generating photo-electrons, secondary electrons or Auger electrons
  • H01J 49/20 Magnetic deflection
  • H01J 49/22 Electrostatic deflection
  • H01J 49/24 Vacuum systems, e.g. maintaining desired pressures

Top Applicants

Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 37,897
  2. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
  3. APPLIED MATERIALS US 21,640
  4. LG ENERGY SOLUTION KR 20,770
  5. LG CHEM KR 19,835
  6. TOKYO ELECTRON JP 18,519
  7. ROBERT BOSCH DE 14,595
  8. INTEL CORPORATION US 13,580
  9. MURATA MANUFACTURING COMPANY JP 12,151
  10. SAMSUNG SDI COMPANY KR 12,080