- 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: 789
10-year publication summary
|
48
|
57
|
63
|
70
|
58
|
52
|
42
|
31
|
45
|
24
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kennametal Inc. | 1389 |
125 |
| Iscar, Ltd. | 1125 |
59 |
| Kyocera Corporation | 13857 |
37 |
| Robert Bosch GmbH | 42705 |
29 |
| Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG | 146 |
26 |
| Sandvik Intellectual Property AB | 1482 |
25 |
| Hilti Aktiengesellschaft | 3498 |
22 |
| Sumitomo Electric Hardmetal Corp. | 1026 |
21 |
| Milwaukee Electric Tool Corporation | 4417 |
20 |
| OSG Corporation | 350 |
17 |
| Black & Decker, Inc. | 2410 |
14 |
| TaeguTec, Ltd. | 179 |
14 |
| Gühring oHG | 68 |
11 |
| Mitsubishi Materials Corporation | 2449 |
11 |
| Subaru Corporation | 3556 |
11 |
| Korloy Inc. | 253 |
9 |
| SECO Tools AB | 462 |
9 |
| AB Sandvik Coromant | 241 |
8 |
| Allied Machine & Engineering Corp. | 103 |
8 |
| Shenzhen Jinzhou Precision Technology Corp. | 24 |
8 |
| Other owners | 305 |