- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24S - Solar heat collectorssolar heat systems
- F24S 20/61 - Passive solar heat collectors, e.g. operated without external energy sources
Patent holdings for IPC class F24S 20/61
Total number of patents in this class: 23
10-year publication summary
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1
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5
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3
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3
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4
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3
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5
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3
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2
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2
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rodluvan Inc. | 8 |
3 |
| Alcer | 2 |
2 |
| International Business Machines Corporation | 62805 |
1 |
| Massachusetts Institute of Technology | 10305 |
1 |
| Alceru Schwarza GmbH | 1 |
1 |
| Holtec International, Inc. | 278 |
1 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2841 |
1 |
| Tianjin University | 918 |
1 |
| Universite de La Reunion | 16 |
1 |
| Zhongying Changjiang International New Energy Investment Co., Ltd. | 32 |
1 |
| Beijing Wadener Technology Co.,Ltd | 3 |
1 |
| Progetto CMR S.r.l. | 10 |
1 |
| Frederick R. Guy | 3 |
1 |
| Focchi S.p.A. | 6 |
1 |
| Dokuz Eylul Universitesi Rektorlugu | 92 |
1 |
| Trigo Energies Inc. | 9 |
1 |
| Northwest Institute of Eco-environment and Resources, Chinese Academy of Sciences | 35 |
1 |
| UNM Rainforest Innovations | 497 |
1 |
| Frederick Guy | 2 |
1 |
| NT Giken Industries Co.,Ltd. | 1 |
1 |
| Other owners | 0 |