- All sections
- C - Chemistrymetallurgy
- C03B - Manufacture or shaping of glass, or of mineral or slag woolsupplementary processes in the manufacture or shaping of glass, or of mineral or slag wool
- C03B 33/033 - Apparatus for opening score lines in glass sheets
Patent holdings for IPC class C03B 33/033
Total number of patents in this class: 277
10-year publication summary
|
21
|
22
|
24
|
17
|
25
|
33
|
23
|
18
|
17
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10320 |
82 |
| Nippon Electric Glass Co., Ltd. | 2470 |
51 |
| Bando Kiko Co., Ltd. | 73 |
13 |
| Saint-Gobain Glass France | 3249 |
12 |
| Mitsuboshi Diamond Industrial Co., Ltd. | 147 |
10 |
| Nitto Denko Corporation | 8338 |
8 |
| SCHOTT AG | 1709 |
8 |
| Corning Precision Materials Co., Ltd. | 211 |
7 |
| Grenzebach Maschinenbau GmbH | 174 |
7 |
| Agc, Inc. | 4940 |
6 |
| Asahi Glass Company, Limited | 2760 |
5 |
| Saint-Gobain Sekurit France | 658 |
4 |
| Boe Technology Group Co., Ltd. | 41668 |
3 |
| Arizona Board of Regents on behalf of Arizona State University | 2673 |
3 |
| Disco Corporation | 1873 |
3 |
| Rofin-Sinar Technologies LLC | 21 |
3 |
| Samsung Display Co., Ltd. | 35374 |
2 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8476 |
2 |
| Japan Display Inc. | 6995 |
2 |
| Beijing BOE Display Technology Co., Ltd. | 2816 |
2 |
| Other owners | 44 |