- All sections
- B - Performing operationstransporting
- B23F - Making gears or toothed racks
- B23F 9/08 - Making gears having teeth curved in their longitudinal direction by milling, e.g. with helicoidal hob
Patent holdings for IPC class B23F 9/08
Total number of patents in this class: 25
10-year publication summary
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1
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3
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2
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2
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2
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2
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2
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0
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0
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1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Gleason Works | 200 |
4 |
| Aisin Seiki Kabushiki Kaisha | 2221 |
2 |
| JTEKT Corporation | 2516 |
2 |
| Sumitomo Electric Industries, Ltd. | 15659 |
1 |
| GM Global Technology Operations LLC | 15192 |
1 |
| Asano Gear Co., Ltd | 4 |
1 |
| Bourn & Koch, Inc. | 2 |
1 |
| Danfoss Power Solutions S.r.l. | 5 |
1 |
| Fisher & Company, Incorporated | 39 |
1 |
| Gebr. Heller Maschinenfabrik GmbH | 63 |
1 |
| HPG Nederland B.V. | 1 |
1 |
| Klingelnberg AG | 82 |
1 |
| Klingelnberg GmbH | 52 |
1 |
| Ogasawara Precision Laboratory Co., Ltd. | 4 |
1 |
| SEW-EURODRIVE GmbH & Co. KG | 1961 |
1 |
| Tianjin Buffalo Transmission Technology Co., Ltd. | 2 |
1 |
| Voith Patent GmbH | 2772 |
1 |
| Beijing Buffalo Transmission Technology Co., Ltd. | 2 |
1 |
| Hunan Zdcy CNC Equipment Co., Ltd. | 12 |
1 |
| Sumitomo Electric Sintered Allow, Ltd. | 1 |
1 |
| Other owners | 0 |