CPC Subgroup Additional Only
B81B 2201/03 Microengines and actuators
Full Title
Specific applications of microelectromechanical systems > Microengines and actuators
8 direct subcodes
Child Classifications
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- B81B 2201/031 Thermal actuators
- B81B 2201/032 Bimorph and unimorph actuators, e.g. piezo and thermo
- B81B 2201/033 Comb drives
- B81B 2201/034 Electrical rotating micromachines
- B81B 2201/035 Microgears
- B81B 2201/036 Micropumps
- B81B 2201/037 Microtransmissions
- B81B 2201/038 Microengines and actuators not provided for in B81B2201/031 - B81B2201/037
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