EnerVault has a total of 67 patents globally, out of which 12 have been granted. Of these 67 patents, more than 6% patents are active. United States of America is where EnerVault has filed the maximum number of patents, followed by Europe (EPO) and India. Parallelly, United States of America seems to be the main focused R&D centre and also is the origin country of EnerVault.
EnerVault founded in 2008, EnerVault develops large-scale energy storage systems using its patented redox flow battery technology. Designed for commercial, industrial, renewable, and utility applications, its solutions provide a safe, reliable, and cost-effective way to manage long-term energy needs. The company’s configurable systems are built to deliver maximum value in energy storage.
Do read about some of the most popular patents of EnerVault which have been covered by us in this article and also you can find EnerVault patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over EnerVault patent portfolio.
How many patents does EnerVault have?
EnerVault has a total of 67 patents globally. These patents belong to 13 unique patent families. Out of 67 patents, 4 patents are active.
How Many Patents did EnerVault 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 | EnerVault Applications Filed | EnerVault Patents Granted |
| 2016 | – | 1 |
| 2015 | 7 | 4 |
| 2014 | 11 | 5 |
| 2013 | 15 | – |
| 2012 | 19 | – |
| 2011 | 6 | 1 |
| 2010 | 1 | 1 |
| 2009 | 8 | – |
How many EnerVault patents are Alive/Dead?
Worldwide Patents

How Many Patents did EnerVault File in Different Countries?

Countries in which EnerVault Filed Patents
| Country | Patents |
| United States of America | 24 |
| Europe (EPO) | 5 |
| India | 5 |
| China | 5 |
| Japan | 4 |
| South Africa | 4 |
| Korea (South) | 4 |
| Australia | 2 |
| Brazil | 1 |
| Chile | 1 |
Where are Research Centres of EnerVault Patents Located?
The Research Centre for all the EnerVault patents is the United States of America.
10 Best EnerVault Patents
US20130011704A1 is the most popular patent in the EnerVault portfolio. It has received 93 citations so far from companies like Next One Create, Lockheed Martin and Ampcera.
Below is the list of 10 most cited patents of EnerVault:
| Publication Number | Citation Count |
| US20130011704A1 | 93 |
| US7820321B2 | 71 |
| US20130011702A1 | 54 |
| US20150125768A1 | 49 |
| US20140057141A1 | 43 |
| US20110117411A1 | 41 |
| US20120308856A1 | 37 |
| US20130022852A1 | 34 |
| US8785023B2 | 30 |
| US8980484B2 | 25 |
What Percentage of EnerVault US Patent Applications were Granted?
EnerVault (Excluding its subsidiaries) has filed 22 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 7 have been granted leading to a grant rate of 31.82%.
Below are the key stats of EnerVault patent prosecution at the USPTO.

Which Law Firms are managing US Patents for EnerVault?
| Law Firm | Total Applications | Success Rate |
| The Marbury Law Group Pllc | 21 | 33.33% |
| Howard & Howard Attorneys Pllc | 1 | 0.00% |
What are EnerVault key innovation segments?
What Technologies are Covered by EnerVault?

The chart below distributes patents filed by EnerVault in different countries on the basis of the technology protected in patents. It also represents the markets where EnerVault thinks it’s important to protect particular technological inventions.

R&D Focus: How has EnerVault search focus changed over the years?

EXCLUSIVE INSIGHTS COMING SOON!
Interested in knowing about the areas of innovation that are being protected by EnerVault?