- All sections
- C - Chemistry; metallurgy
- C03B - Manufacture or shaping of glass, or of mineral or slag wool; supplementary 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: 627
10-year publication summary
51
|
54
|
49
|
47
|
60
|
42
|
64
|
47
|
42
|
18
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Johns Manville | 980 |
90 |
Owens-Brockway Glass Container Inc. | 716 |
78 |
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
43 |
Saint-Gobain Isover | 603 |
41 |
Corning Incorporated | 9932 |
37 |
AGC Glass Europe | 1049 |
26 |
Praxair Technology, Inc. | 1367 |
24 |
Nippon Electric Glass Co., Ltd. | 2299 |
21 |
Knauf Insulation | 46 |
19 |
Saint-Gobain Glass France | 3641 |
18 |
Knauf Insulation SPRL | 167 |
16 |
Asahi Glass Company, Limited | 2985 |
13 |
Rockwool A/S | 753 |
12 |
Air Products and Chemicals, Inc. | 1448 |
9 |
SCHOTT AG | 1675 |
9 |
ROCKWOOL International A/S | 323 |
9 |
Owens Corning Intellectual Capital, LLC | 1456 |
7 |
Plasma Tech Holdings, LLC | 29 |
7 |
Agc, Inc. | 4029 |
7 |
OCV Intellectual Capital, LLC | 265 |
6 |
Other owners | 135 |