- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16B - Devices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedgesjoints or jointing
- F16B 23/00 - Specially-shaped heads of bolts or screws for rotations by a tool
Patent holdings for IPC class F16B 23/00
Total number of patents in this class: 574
10-year publication summary
|
45
|
48
|
55
|
59
|
55
|
48
|
49
|
45
|
35
|
30
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Phillips Screw Company | 91 |
17 |
| Illinois Tool Works Inc. | 11554 |
15 |
| Acument Intellectual Properties, LLC | 133 |
14 |
| MacLean-Fogg Company | 100 |
10 |
| INFASTECH Intellectual Properties Pte. Ltd. | 71 |
10 |
| Grip Holdings, LLC | 121 |
9 |
| McGard LLC | 49 |
9 |
| Kwantex Research Inc. | 33 |
7 |
| Mathread Inc. | 41 |
7 |
| Ttapdrive AS | 14 |
7 |
| The Boeing Company | 20163 |
6 |
| Bryce Fastener Company, Inc. | 13 |
6 |
| Physical Systems, Inc. | 39 |
6 |
| Howmet Aerospace Inc. | 394 |
6 |
| Avvio GmbH & Co KG | 16 |
5 |
| Fontana Fasteners R.D. S.r.l. | 19 |
5 |
| LISI Aerospace | 133 |
5 |
| Ford Global Technologies, LLC | 20932 |
4 |
| The Hillman Group, Inc. | 395 |
4 |
| Mueller International, LLC | 727 |
4 |
| Other owners | 418 |