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CPC Main Group
C10H 9/00

Acetylene gas generators according to Dobereiner's principle with fixed carbide bell

5 direct subcodes

Child Classifications

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  • C10H 9/02 with water feed from below through porous materials (by capillary feed)
  • C10H 9/04 with gas cock actuated by the gas holder
  • C10H 9/06 with the depth of the gas outlet pipe regulated by the gas-holder
  • C10H 9/08 with movable gas-holder
  • C10H 9/10 by wetting the carbide only at the bottom

Top Applicants

Top 10 applicants by patent filingsfor class C10, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 5,831
  2. SAUDI ARABIAN OIL COMPANY SA 2,918
  3. IFPEN (IFP ENERGIES NOUVELLES) FR 2,305
  4. EXXONMOBIL RESEARCH AND ENGINEERING COMPANY US 2,282
  5. UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 2,268
  6. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NL 2,124
  7. BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,487
  8. CHEVRON CORPORATION US 1,400
  9. PETROCHINA COMPANY 1,372
  10. LUBRIZOL CORPORATION US 1,324