- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/952 - Inspecting the exterior surface of cylindrical bodies or wires
Patent holdings for IPC class G01N 21/952
Total number of patents in this class: 427
10-year publication summary
|
32
|
32
|
40
|
48
|
36
|
54
|
35
|
33
|
39
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GII Acquisition, LLC | 38 |
9 |
| Corning Incorporated | 9932 |
8 |
| Pirelli Tyre S.p.A. | 1832 |
8 |
| Altria Client Services LLC | 1866 |
7 |
| Nippon Steel Corporation | 5649 |
7 |
| Saudi Arabian Oil Company | 11322 |
7 |
| LG Energy Solution, Ltd. | 10813 |
7 |
| Philip Morris Products S.A. | 6751 |
6 |
| Getac Technology Corporation | 632 |
6 |
| The Boeing Company | 19843 |
5 |
| Sumitomo Electric Industries, Ltd. | 14131 |
5 |
| Mitsubishi Electric Corporation | 43934 |
5 |
| Hitachi Astemo, Ltd. | 5618 |
5 |
| Aramco Services Company | 3504 |
4 |
| Japan Tobacco Inc. | 3225 |
4 |
| INOEX GmbH Innovationen und Ausrüstungen für die Extrusionstechnik | 31 |
4 |
| 3m Innovative Properties Company | 18406 |
3 |
| Illinois Tool Works Inc. | 11152 |
3 |
| Robert Bosch GmbH | 40953 |
3 |
| Bridgestone Corporation | 7067 |
3 |
| Other owners | 318 |