- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/958 - Inspecting transparent materials
Patent holdings for IPC class G01N 21/958
Total number of patents in this class: 671
10-year publication summary
|
42
|
51
|
54
|
49
|
41
|
73
|
50
|
50
|
38
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saint-Gobain Glass France | 3223 |
30 |
| Corning Incorporated | 10463 |
20 |
| Nippon Electric Glass Co., Ltd. | 2516 |
15 |
| Glasstech, Inc. | 120 |
14 |
| Samsung Display Co., Ltd. | 38092 |
11 |
| Carl Zeiss Vision International GmbH | 682 |
10 |
| KLA-Tencor Corporation | 2522 |
10 |
| Robert Bosch GmbH | 43788 |
9 |
| Alcon, Inc. | 5757 |
9 |
| Belron International Limited | 216 |
9 |
| Nitto Denko Corporation | 8486 |
8 |
| Sumitomo Chemical Company, Limited | 9015 |
8 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8473 |
8 |
| Essilor International (compagnie Generale D'optique) | 2963 |
8 |
| Emage Vision Pte. Ltd | 20 |
8 |
| The Boeing Company | 20131 |
7 |
| Applied Materials, Inc. | 20145 |
7 |
| Isra Surface Vision GmbH | 9 |
7 |
| Saint-Gobain Sekurit France | 810 |
7 |
| SCHOTT AG | 1739 |
7 |
| Other owners | 459 |