ENN Energy Holdings has a total of 2352 patents globally, out of which 2032 have been granted. Of these 2352 patents, more than 73% patents are active. China is where ENN Energy Holdings has filed all the number of patents. Parallelly, China seems to be the main focused R&D center and also China is the origin country of ENN Energy Holdings.
ENN Energy Holdings was founded in the year 1992. The Company distributes natural gas. The Company, through its subsidiaries, invests in, operates, and manages gas pipelines, and sells and distributes piped and bottled gas.
Do read about some of the most popular patents of ENN Energy Holdings which have been covered by us in this article and also you can find ENN Energy Holdings patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over ENN Energy Holdings patent portfolio.
How many patents does ENN Energy Holdings have?
ENN Energy Holdings has a total of 2352 patents globally. These patents belong to 2342 unique patent families. Out of 2352 patents, 1740 patents are active.
How Many Patents did ENN Energy Holdings 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 | ENN Energy Applications Filed | ENN Energy Patents Granted |
| 2023 | 1 | 90 |
| 2022 | 224 | 319 |
| 2021 | 378 | 402 |
| 2020 | 360 | 307 |
| 2019 | 302 | 195 |
| 2018 | 225 | 169 |
| 2017 | 268 | 76 |
| 2016 | 101 | 69 |
| 2015 | 90 | 109 |
| 2014 | 134 | 127 |
| 2013 | 78 | 126 |
| 2012 | 140 | 24 |
| 2011 | 24 | 10 |
How many ENN Energy Holdings patents are Alive/Dead?
Worldwide Patents
How Many Patents did ENN Energy Holdings File in Different Countries?
All the patents were filed by ENN Energy Holdings in the China
Countries in which ENN Energy Holdings Filed Patents
| Country | Patents |
| China | 2342 |
Where are the Research Centers of ENN Energy Holdings Patents Located?
The research center of all the ENN Energy Holdings is the China.
10 Best ENN Energy Holdings Patents
CN204512671U is the most popular patent in the ENN Energy Holdings portfolio. It has received 56 citations so far from companies like Dongfeng Motor Group Co, Xuzhou Huibo Textile Co and Heyuan Fuma Cemented Carbide Co.
Below is the list of 10 most cited patents of ENN Energy Holdings:
| Publication Number | Citation Count |
| CN204512671U | 56 |
| CN101488213A | 41 |
| CN205957770U | 15 |
| CN204829061U | 15 |
| CN205642505U | 14 |
| CN101639142A | 14 |
| CN205318534U | 13 |
| CN202012742U | 13 |
| CN201310744Y | 13 |
| CN204459748U | 12 |