Patent holdings for IPC class B61L 27/12

Total number of patents in this class: 63

10-year publication summary

0
3
1
0
2
3
7
14
16
11
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Hitachi, Ltd.
15476
18
NEC Corporation
35619
3
Mitsubishi Electric Corporation
46037
3
BNSF Railway Company
420
3
Tata Consultancy Services Limited
2335
3
Technological Resources Pty. Limited
452
3
Transportation IP Holdings, LLC
931
3
Toshiba Corporation
12334
2
BYD Company Limited
4978
2
Parallel Systems, Inc.
35
2
Progress Rail Locomotive Inc.
318
2
Siemens Mobility, Inc.
352
2
Casco Signal Co., Ltd.
146
2
Progress Rail Services Corp
234
1
National Institute of Advanced Industrial Science and Technology
3805
1
Casco Signal Ltd.
58
1
Herzog Railroad Services, Inc.
61
1
Toshiba Infrastructure Systems & Solutions Corporation
1060
1
Siemens Mobility GmbH
1716
1
Siemens Mobility SAS
62
1
Other owners 8