- 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 5/235 - Heating the glass
Patent holdings for IPC class C03B 5/235
Total number of patents in this class: 680
10-year publication summary
|
49
|
47
|
60
|
42
|
64
|
48
|
44
|
45
|
43
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Owens-Brockway Glass Container Inc. | 796 |
95 |
| Johns Manville | 924 |
87 |
| Corning Incorporated | 10463 |
44 |
| Saint-Gobain Isover | 668 |
42 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4071 |
41 |
| AGC Glass Europe | 1158 |
35 |
| Nippon Electric Glass Co., Ltd. | 2516 |
30 |
| Praxair Technology, Inc. | 1234 |
27 |
| Knauf Insulation | 48 |
15 |
| Knauf Insulation SPRL | 175 |
15 |
| Rockwool A/S | 825 |
14 |
| Air Products and Chemicals, Inc. | 1468 |
12 |
| Agc, Inc. | 5383 |
12 |
| Saint-Gobain Glass France | 3223 |
11 |
| Asahi Glass Company, Limited | 2654 |
10 |
| SCHOTT AG | 1739 |
9 |
| ROCKWOOL International A/S | 290 |
9 |
| Owens Corning Intellectual Capital, LLC | 1692 |
7 |
| Caihong Display Devices Co.,Ltd. | 67 |
7 |
| Vitro Flat Glass LLC | 503 |
6 |
| Other owners | 152 |