- All sections
- B - Performing operations; transporting
- B23B - Turning; boring
- B23B 51/00 - Tools for drilling machines
Patent holdings for IPC class B23B 51/00
Total number of patents in this class: 1287
10-year publication summary
|
71
|
70
|
113
|
109
|
113
|
117
|
90
|
68
|
75
|
24
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Hardmetal Corp. | 969 |
201 |
| Kyocera Corporation | 12735 |
107 |
| Mitsubishi Materials Corporation | 2378 |
73 |
| Tungaloy Corporation | 481 |
73 |
| Sumitomo Electric Industries, Ltd. | 14131 |
50 |
| OSG Corporation | 355 |
50 |
| Kennametal Inc. | 1380 |
47 |
| Milwaukee Electric Tool Corporation | 3572 |
35 |
| Robert Bosch GmbH | 40953 |
28 |
| Iscar, Ltd. | 1084 |
27 |
| Sandvik Intellectual Property AB | 1634 |
25 |
| Allied Machine & Engineering Corp. | 106 |
21 |
| SECO Tools AB | 456 |
21 |
| Hilti Aktiengesellschaft | 3227 |
18 |
| The Boeing Company | 19843 |
14 |
| Black & Decker, Inc. | 2402 |
12 |
| Unitac, Inc. | 21 |
11 |
| Mitsubishi Hitachi Tool Engineering, Ltd. | 99 |
9 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
8 |
| Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG | 153 |
8 |
| Other owners | 449 |