- 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 39/04 - Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working external surfaces of revolution
Patent holdings for IPC class B24B 39/04
Total number of patents in this class: 73
10-year publication summary
|
8
|
7
|
7
|
5
|
4
|
2
|
2
|
1
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hegenscheidt-MFD GmbH & Co. KG | 72 |
22 |
| Maschinenfabrik Alfing Kessler GmbH | 54 |
7 |
| RENAULT s.a.s. | 5390 |
5 |
| Aktiebolaget SKF | 2834 |
3 |
| Ellwood National Investment Corp. | 17 |
3 |
| Honda Motor Co., Ltd. | 24865 |
2 |
| Schaeffler Technologies AG & Co. KG | 9364 |
2 |
| Ecoroll AG Werkzeugtechnik | 15 |
2 |
| Rolls-Royce Deutschland Ltd & Co KG | 794 |
2 |
| Sugino Machine Limited | 165 |
2 |
| Universitat Politecnica de Catalunya | 369 |
2 |
| Knust-Godwin LLC | 2 |
2 |
| General Electric Company | 17803 |
1 |
| Siemens AG | 24572 |
1 |
| United Technologies Corporation | 2259 |
1 |
| Mitsubishi Electric Corporation | 44738 |
1 |
| Caterpillar Inc. | 9149 |
1 |
| NTN Corporation | 4980 |
1 |
| Emerson Electric Co. | 581 |
1 |
| Hammer Electric Power Tools Co., Ltd. | 4 |
1 |
| Other owners | 11 |