- 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 5/237 - Regenerators or recuperators specially adapted for glass-melting furnaces
Patent holdings for IPC class C03B 5/237
Total number of patents in this class: 139
10-year publication summary
|
18
|
11
|
15
|
9
|
10
|
4
|
7
|
7
|
8
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Praxair Technology, Inc. | 1273 |
27 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3984 |
23 |
| Fosbel, Inc. | 60 |
9 |
| Agc, Inc. | 5000 |
7 |
| Saint-Gobain Centre de Recherches et d'Etudes Europeen | 492 |
5 |
| Air Products and Chemicals, Inc. | 1447 |
4 |
| Johns Manville | 944 |
4 |
| Fsbl Acquisition, Inc. | 16 |
4 |
| American Air Liquide, Inc. | 256 |
3 |
| Fare S.r.l. | 6 |
3 |
| Linde Aktiengesellschaft | 1485 |
3 |
| Software & Technologie Glas GmbH (stg) | 7 |
3 |
| Corning Incorporated | 10383 |
2 |
| AGC Glass Europe | 1145 |
2 |
| Knauf Insulation, Inc. | 188 |
2 |
| Messer Austria GmbH | 24 |
2 |
| Owens-Brockway Glass Container Inc. | 781 |
2 |
| Plasma Tech Holdings, LLC | 14 |
2 |
| Toyo Glass Co., Ltd. | 66 |
2 |
| Knauf Insulation Gmbh | 24 |
2 |
| Other owners | 28 |