CPC Subgroup Additional Only
B81C 2201/0178 Oxidation
Full Title
Manufacture or treatment of microstructural devices or systems > in or on a substrate > for making multi-layered devices, film deposition or growing > Chemical vapour Deposition > Oxidation
Top Applicants
Top 10 applicants by patent filingsfor class B81, 2013–2023, worldwide · Source: EPO PATSTAT
- ROBERT BOSCH DE 1,976
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 788
- INFINEON TECHNOLOGIES DE 759
- CEA (COMMISSARIAT A L'ENERGIE ATOMIQUE) FR 555
- STMICROELECTRONICS IT 526
- INVENSENSE US 430
- MURATA MANUFACTURING COMPANY JP 418
- SEIKO EPSON CORPORATION 338
- CHINESE ACADEMY OF SCIENCES 338
- FRAUNHOFER DE 297