- 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 25/02 - Annealing glass products in a discontinuous way
Patent holdings for IPC class C03B 25/02
Total number of patents in this class: 208
10-year publication summary
|
23
|
35
|
19
|
12
|
11
|
13
|
12
|
17
|
12
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10500 |
35 |
| Agc, Inc. | 5502 |
17 |
| Nippon Electric Glass Co., Ltd. | 2554 |
9 |
| Hoya Corporation | 2719 |
7 |
| Asahi Glass Company, Limited | 2625 |
5 |
| Saint-Gobain Glass France | 3240 |
5 |
| SCHOTT AG | 1737 |
5 |
| Upterior, LLC | 10 |
4 |
| Jsw Aktina System, Co., Ltd. | 83 |
4 |
| Sumitomo Electric Industries, Ltd. | 16305 |
3 |
| Shin-Etsu Chemical Co., Ltd. | 6083 |
3 |
| Glasstech, Inc. | 120 |
3 |
| Heraeus Quarzglas GmbH & Co. KG | 417 |
3 |
| Aidite (Qinhuangdao) Technology Co., Ltd. | 98 |
3 |
| Hansol Iones Co., Ltd. | 15 |
3 |
| Olympus Corporation | 12942 |
2 |
| Massachusetts Institute of Technology | 10239 |
2 |
| Lockheed Martin Corporation | 3260 |
2 |
| 3SAE Technologies, Inc. | 47 |
2 |
| China Building Materials Academy | 26 |
2 |
| Other owners | 89 |