Longi has a total of 3509 patents globally, out of which 2535 have been granted. Of these 3509 patents, more than 91% patents are active. China is where Longi has filed the maximum number of patents, followed by United States of America and Europe. Parallelly, China seems to be the main focused R&D centre and also is the origin country of Longi.
Longi was founded in the year 2000. The Company manufactures solar energy products. The Company produces mono crystalline silicon ingots, mono crystalline silicon wafers, semiconductor materials, solar cells and other products. As of June 2023, the market cap of Longi is $29.45 Billion.
Do read about some of the most popular patents of Longi which have been covered by us in this article and also you can find Longi patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Longi patent portfolio.
How many patents does the founder of Longi have?
The founder Zhenguo Li has 161 patents.
How many patents does Longi have?
Longi has a total of 3509 patents globally. These patents belong to 3044 unique patent families. Out of 3509 patents, 3208 patents are active.
How Many Patents did Longi File Every Year?
Are you wondering why there is a drop in patent filing for the last two years? It is because a patent application can take up to 18 months to get published. Certainly, it doesn’t suggest a decrease in the patent filing.
| Year of Patents Filing or Grant | Longi Applications Filed | Longi Patents Granted |
| 2023 | 3 | 65 |
| 2022 | 71 | 182 |
| 2021 | 332 | 397 |
| 2020 | 559 | 362 |
| 2019 | 498 | 281 |
| 2018 | 336 | 303 |
| 2017 | 372 | 133 |
| 2016 | 189 | 134 |
| 2015 | 145 | 86 |
| 2014 | 86 | 82 |
| 2013 | 120 | 74 |
| 2012 | 132 | 83 |
How many Longi patents are Alive/Dead?
How Many Patents did Longi File in Different Countries?
Countries in which Longi Filed Patents
| Country | Patents |
| China | 3238 |
| United States Of America | 29 |
| Europe | 26 |
| Australia | 21 |
| India | 16 |
| Viet Nam | 10 |
| Malaysia | 7 |
| Japan | 4 |
| Germany | 4 |
| Spain | 3 |
| Taiwan | 2 |
| Brazil | 1 |
| Korea (South) | 1 |
| Italy | 1 |
Where are Research Centres of Longi Patents Located?
10 Best Longi Patents
CN208666355U is the most popular patent in the Longi portfolio. It has received 135 citations so far from companies like Zhejiang Aixu Solar Technology.
Below is the list of 10 most cited patents of Longi:
| Publication Number | Citation Count |
| CN208666355U | 135 |
| CN207602596U | 97 |
| CN210837781U | 77 |
| CN208572028U | 58 |
| CN207868208U | 50 |
| CN208143187U | 49 |
| CN205069667U | 47 |
| CN208094518U | 43 |
| CN207535667U | 43 |
| MY2020007116A0 | 43 |