- All sections
- B - Performing operations; transporting
- B23B - Turning; boring
- B23B 51/02 - Twist drills
Patent holdings for IPC class B23B 51/02
Total number of patents in this class: 774
10-year publication summary
|
53
|
50
|
59
|
70
|
71
|
61
|
52
|
47
|
30
|
15
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kennametal Inc. | 1380 |
122 |
| Iscar, Ltd. | 1084 |
57 |
| Kyocera Corporation | 12735 |
36 |
| Sandvik Intellectual Property AB | 1634 |
27 |
| Robert Bosch GmbH | 40953 |
26 |
| Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG | 153 |
26 |
| Hilti Aktiengesellschaft | 3227 |
22 |
| OSG Corporation | 355 |
17 |
| Sumitomo Electric Hardmetal Corp. | 969 |
16 |
| Milwaukee Electric Tool Corporation | 3572 |
16 |
| TaeguTec, Ltd. | 178 |
14 |
| Black & Decker, Inc. | 2402 |
13 |
| Gühring oHG | 71 |
11 |
| SECO Tools AB | 456 |
11 |
| Subaru Corporation | 2959 |
11 |
| Allied Machine & Engineering Corp. | 106 |
10 |
| Korloy Inc. | 249 |
10 |
| Mitsubishi Materials Corporation | 2378 |
10 |
| Illinois Tool Works Inc. | 11152 |
7 |
| EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge | 83 |
7 |
| Other owners | 305 |