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CPC Subgroup Additional Only
B81C 2201/0174

for making multi-layered devices, film deposition or growing

Full Title

Manufacture or treatment of microstructural devices or systems > in or on a substrate > for making multi-layered devices, film deposition or growing

6 direct subcodes

Child Classifications

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  • B81C 2201/0181 Physical Vapour Deposition [PVD], i.e. evaporation, sputtering, ion plating or plasma assisted deposition, ion cluster beam technology
  • B81C 2201/019 Bonding or gluing multiple substrate layers
  • B81C 2201/0197 Processes for making multi-layered devices not provided for in groups B81C2201/0176 - B81C2201/0192

Top Applicants

Top 10 applicants by patent filingsfor class B81, 2013–2023, worldwide · Source: EPO PATSTAT

  1. ROBERT BOSCH DE 1,976
  2. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 788
  3. INFINEON TECHNOLOGIES DE 759
  4. CEA (COMMISSARIAT A L'ENERGIE ATOMIQUE) FR 555
  5. STMICROELECTRONICS IT 526
  6. INVENSENSE US 430
  7. MURATA MANUFACTURING COMPANY JP 418
  8. SEIKO EPSON CORPORATION 338
  9. CHINESE ACADEMY OF SCIENCES 338
  10. FRAUNHOFER DE 297