DIFF Subgroup Additional Only
B06B 2201/55 Piezoelectric transducer
Full Title
Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups > Application to a particular transducer type > Piezoelectric transducer
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Note: 1 CPC extensions are marked as secondary classification only.
Top Applicants
Top Applicants (IPC)
Class B06,2013–2023, worldwide · Source: EPO PATSTAT
- PHILIPS ELECTRONICS NL 377
- MURATA MANUFACTURING COMPANY JP 249
- SEIKO EPSON CORPORATION JP 202
- BUTTERFLY NETWORK US 191
- CANON JP 154
- ROBERT BOSCH DE 152
- NIDEC COPAL CORPORATION 130
- KT & G CORPORATION KR 116
- FLODESIGN SONICS US 114
- OLYMPUS CORPORATION JP 110
Top Applicants (CPC)
Class B06,2013–2023, worldwide · Source: EPO PATSTAT
- PHILIPS ELECTRONICS NL 459
- MURATA MANUFACTURING COMPANY JP 341
- SEIKO EPSON CORPORATION 318
- SEIKO EPSON CORPORATION JP 281
- BUTTERFLY NETWORK US 279
- CANON JP 237
- ROBERT BOSCH DE 216
- OLYMPUS CORPORATION JP 175
- FUJIFILM JP 166
- SAMSUNG ELECTRONICS COMPANY KR 163