- All sections
- B - Performing operations; transporting
- B24B - Machines, devices, or processes for grinding or polishing; dressing or conditioning of abrading surfaces; feeding of grinding, polishing, or lapping agents
- B24B 5/04 - Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
Patent holdings for IPC class B24B 5/04
Total number of patents in this class: 153
10-year publication summary
|
20
|
14
|
24
|
13
|
7
|
8
|
12
|
14
|
10
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JTEKT Corporation | 2435 |
11 |
| NTN Corporation | 4980 |
6 |
| Erwin Junker Maschinenfabrik GmbH | 42 |
6 |
| Tenova S.p.A. | 154 |
5 |
| NGK Insulators, Ltd. | 4791 |
4 |
| Shin-Etsu Handotai Co., Ltd. | 1289 |
4 |
| Schaeffler Technologies AG & Co. KG | 9364 |
3 |
| Fives Landis Corp. | 33 |
3 |
| Fives Landis Limited | 40 |
3 |
| The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. | 363 |
3 |
| Pratt & Whitney Canada Corp. | 4434 |
2 |
| Life Technologies Corporation | 3194 |
2 |
| NSK Ltd. | 2732 |
2 |
| Komatsu NTC Ltd. | 121 |
2 |
| Advanced Drainage Systems, Inc. | 321 |
2 |
| Amsted Rail Company, Inc. | 437 |
2 |
| Erwin Junker Grinding Technology A.S. | 27 |
2 |
| Glebar Acquisition, LLC | 11 |
2 |
| Pipeline Induction Heat Limited | 27 |
2 |
| Schaudt Mikrosa GmbH | 10 |
2 |
| Other owners | 85 |