- All sections
- B - Performing operationstransporting
- B23B - Turningboring
- B23B 51/02 - Twist drills
Patent holdings for IPC class B23B 51/02
Total number of patents in this class: 788
10-year publication summary
|
50
|
59
|
70
|
71
|
62
|
53
|
45
|
32
|
45
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kennametal Inc. | 1387 |
122 |
| Iscar, Ltd. | 1118 |
59 |
| Kyocera Corporation | 13706 |
36 |
| Robert Bosch GmbH | 42505 |
29 |
| Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG | 153 |
26 |
| Sandvik Intellectual Property AB | 1492 |
25 |
| Hilti Aktiengesellschaft | 3459 |
23 |
| Sumitomo Electric Hardmetal Corp. | 1014 |
21 |
| Milwaukee Electric Tool Corporation | 4300 |
20 |
| OSG Corporation | 353 |
18 |
| Black & Decker, Inc. | 2403 |
14 |
| TaeguTec, Ltd. | 179 |
14 |
| Gühring oHG | 68 |
11 |
| Mitsubishi Materials Corporation | 2432 |
11 |
| Subaru Corporation | 3510 |
11 |
| Korloy Inc. | 254 |
9 |
| SECO Tools AB | 459 |
9 |
| AB Sandvik Coromant | 230 |
8 |
| Allied Machine & Engineering Corp. | 103 |
8 |
| Shenzhen Jinzhou Precision Technology Corp. | 24 |
8 |
| Other owners | 306 |