Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026
20 patents granted to the 7 names below, as the owner printed on each patent when it was granted. A later sale, a lapse or an expiry is not read, so this is what was granted to Canadian Solar Inc.’s names, not what it holds today.
Patents granted
20
13 utility, 7 design, 1976 to Dec 31, 2025
Granted in 2025
1
Against 4 in 2024 and 1 in 2023
Applications published
18
1 of them in 2025
Names they are printed under
7
a subsidiary
By yearGrantedApplications published
'09'10'12'14'15'16'17'18'19'20'21'22'23'24'25
Each pair is one calendar year. Applications are published about eighteen months after filing, so the newest years read low.
What they are aboutgrants since 2021
Semiconductors3
Electrical machinery, apparatus, energy1
Thermal processes and apparatus1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name7 counted
CSI CELLS CO., LTD. a subsidiary
CN, as the owner printed on each patent
8 publishedCSI CELLS CO., LTD. a subsidiary
named as the applicant on its applications, in CN
5 publishedCANADIAN SOLAR MANUFACTURING (CHANGSHU) INC. a subsidiary
CN, as the owner printed on each patent
0 publishedCANADIAN SOLAR MANUFACTURING (CHANGSHU) INC. a subsidiary
named as the applicant on its applications, in CN
3 publishedCANADIAN SOLAR SOLUTIONS INC. a subsidiary
named as the applicant on its applications, in CA
1 publishedCSI SOLAR CO., LTD. a subsidiary
CN, as the owner printed on each patent
0 publishedCSI SOLAR CO., LTD. a subsidiary
named as the applicant on its applications, in CN
1 publishedNames not counted (1)
Canadian Solar (USA) Inc.
No country is printed for it. 0 granted and 1 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
| Granted | Patent | Title | Field | Owner as printed |
|---|
| Mar 25, 2025 | 12,261,236 | Conductive member and manufacturing method therefor, and photovoltaic module and manufacturing method therefor | Semiconductors | CSI CELLS CO., LTD. |
| Oct 1, 2024 | 12,107,179 | Photovoltaic assembly | Semiconductors | CSI CELLS CO., LTD. |
| May 7, 2024 | 11,979,110 | Solar panel mounting assembly | Thermal processes and apparatus | CSI SOLAR CO., LTD. |
| Apr 16, 2024 | D1,022,870 | Solar panel | | CSI CELLS CO., LTD. |
| Mar 5, 2024 | D1,016,734 | Solar panel | | CSI CELLS CO., LTD. |
| Mar 14, 2023 | 11,606,060 | Locking device, photovoltaic module mounting structure, and photovoltaic system | Electrical machinery, apparatus, energy | CANADIAN SOLAR MANUFACTURING (CHANGSHU) INC. |
| Aug 17, 2021 | 11,094,838 | Texturization method of silicon wafers, product obtained therefrom and preparation method of solar cells | Semiconductors | CSI CELLS CO., LTD. |
| Jun 1, 2021 | D920,897 | Photovoltaic cell panel | | CANADIAN SOLAR MANUFACTURING (CHANGSHU) INC. |
| Nov 24, 2020 | D902,845 | Solar cell panel | | CSI CELLS CO., LTD. |
| Nov 24, 2020 | D902,844 | Solar cell panel | | CANADIAN SOLAR MANUFACTURING (CHANGSHU) INC. |
Newest applications publishedan application is a clue, never a plan
| Published | Application | Title | Field | Owner as printed |
|---|
| Oct 23, 2025 | 2025/0331332 | SOLAR CELL AND PREPARATION METHOD THEREOF, PHOTOVOLTAIC MODULE | Semiconductors | CSI CELLS CO., LTD. |
| Jan 26, 2023 | 2023/0023997 | PHOTOVOLTAIC ASSEMBLY | Semiconductors | CANADIAN SOLAR MANUFACTURING (CHANGSHU) INC. · patent 12,107,179 granted from it |
| Sep 15, 2022 | 2022/0293807 | CONDUCTIVE MEMBER AND MANUFACTURING METHOD THEREFOR, AND PHOTOVOLTAIC MODULE AND MANUFACTURING METHOD THEREFOR | Semiconductors | CANADIAN SOLAR MANUFACTURING (CHANGSHU) INC. · patent 12,261,236 granted from it |
| Aug 25, 2022 | 2022/0271707 | SOLAR PANEL MOUNTING ASSEMBLY | Thermal processes and apparatus | CSI SOLAR CO., LTD. · patent 11,979,110 granted from it |
| Jun 30, 2022 | 2022/0209712 | LOCKING DEVICE, PHOTOVOLTAIC MODULE MOUNTING STRUCTURE, AND PHOTOVOLTAIC SYSTEM | Electrical machinery, apparatus, energy | CANADIAN SOLAR MANUFACTURING (CHANGSHU) INC. · patent 11,606,060 granted from it |
| Nov 7, 2019 | 2019/0341509 | TEXTURIZATION METHOD OF SILICON WAFERS, PRODUCT OBTAINED THEREFROM AND PREPARATION METHOD OF SOLAR CELLS | Semiconductors | CSI CELLS CO., LTD. · patent 11,094,838 granted from it |
| Sep 20, 2018 | 2018/0269344 | SOLAR CELL MODULE | Semiconductors | CSI CELLS CO., LTD. |
| May 3, 2018 | 2018/0122972 | SEMI-FLEXIBLE SOLAR MODULE USING CRYSTALINE SOLAR CELLS AND METHOD FOR FABRICATION THEREOF | Semiconductors | CANADIAN SOLAR SOLUTIONS INC. |
| Dec 28, 2017 | 2017/0373202 | METHOD FOR PRODUCING A TEXTURED STRUCTURE OF A CRYSTALLINE SILICON SOLAR CELL | Semiconductors | CSI CELLS CO., LTD. · patent 10,411,145 granted from it |
| Dec 14, 2017 | 2017/0358695 | TEXTURED STRUCTURE OF CRYSTALLINE SILICON SOLAR CELL AND PREPARATION METHOD THEREOF | Semiconductors | CSI CELLS CO., LTD. |
What it applied for, 2024 to 2025: Semiconductors 1.
A patent is counted where the owner printed on it when it was granted carries the company’s own name, a former name, the name of a subsidiary its annual report lists, or its own name with a patent-holding phrase (Technology Licensing, Intellectual Property and the like), once the legal form, case and punctuation are set aside, and prints a country that name counts in. PatentsView’s data are published under the Creative Commons Attribution 4.0 licence. Source: PatentsView's granted patents and pre-grant publications, disambiguated, from the USPTO's Open Data Portal, through Dec 31, 2025, read Oct 27, 2026.