- All sections
- B - Performing operationstransporting
- B24B - Machines, devices, or processes for grinding or polishingdressing or conditioning of abrading surfacesfeeding 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 surfacesAccessories 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: 151
10-year publication summary
|
20
|
13
|
23
|
12
|
7
|
9
|
12
|
12
|
10
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JTEKT Corporation | 2508 |
11 |
| NTN Corporation | 4965 |
5 |
| Erwin Junker Maschinenfabrik GmbH | 40 |
5 |
| Tenova S.p.A. | 156 |
5 |
| NGK Insulators, Ltd. | 4982 |
4 |
| Shin-Etsu Handotai Co., Ltd. | 1283 |
4 |
| Schaeffler Technologies AG & Co. KG | 9955 |
3 |
| Fives Landis Corp. | 32 |
3 |
| Fives Landis Limited | 43 |
3 |
| The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. | 371 |
3 |
| Pratt & Whitney Canada Corp. | 4804 |
2 |
| Life Technologies Corporation | 3311 |
2 |
| NSK Ltd. | 2789 |
2 |
| Komatsu NTC Ltd. | 117 |
2 |
| Advanced Drainage Systems, Inc. | 349 |
2 |
| Amsted Rail Company, Inc. | 439 |
2 |
| Erwin Junker Grinding Technology A.S. | 24 |
2 |
| Glebar Acquisition, LLC | 11 |
2 |
| Pipeline Induction Heat Limited | 26 |
2 |
| Schaudt Mikrosa GmbH | 10 |
2 |
| Other owners | 85 |