- 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: 196
10-year publication summary
|
28
|
23
|
35
|
19
|
12
|
12
|
13
|
13
|
17
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10257 |
35 |
| Agc, Inc. | 4827 |
16 |
| Nippon Electric Glass Co., Ltd. | 2455 |
9 |
| Hoya Corporation | 2746 |
7 |
| Asahi Glass Company, Limited | 2792 |
5 |
| Saint-Gobain Glass France | 3757 |
5 |
| SCHOTT AG | 1712 |
5 |
| Upterior, LLC | 10 |
4 |
| Jsw Aktina System, Co., Ltd. | 73 |
4 |
| Sumitomo Electric Industries, Ltd. | 15455 |
3 |
| Shin-Etsu Chemical Co., Ltd. | 5651 |
3 |
| Glasstech, Inc. | 123 |
3 |
| Heraeus Quarzglas GmbH & Co. KG | 409 |
3 |
| Olympus Corporation | 13185 |
2 |
| Massachusetts Institute of Technology | 10051 |
2 |
| Lockheed Martin Corporation | 3277 |
2 |
| 3SAE Technologies, Inc. | 45 |
2 |
| China Building Materials Academy | 24 |
2 |
| Corning Laser Technologies GmbH | 8 |
2 |
| HASS Co., Ltd. | 62 |
2 |
| Other owners | 80 |