Ameren Patents – Insights & Stats

Ameren has a total of 11 patents globally, out of which 8 have been granted. Of these 11 patents, more than 45% patents are active. United States of America is where Ameren has filed the maximum number of patents. Parallelly, United States of America seems to be the main focused R&D center and is also the origin country of Ameren.

Ameren was founded in 1997. Ameren is a public utility holding company. The Company, through its subsidiaries, generates electricity, delivers electricity, and distributes natural gas to customers in Missouri and Illinois. As of May 2022, Ameren has a market valuation of $23.97Billion.

Do read about some of the most popular patents of Ameren which have been covered by us in this article and also you can find Ameren patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Ameren patent portfolio.

How many patents does the CEO of Ameren have?

The CEO, Warner L Baxter has 0 patents.

How many patents does Ameren have?

Ameren has a total of 11 patents globally. These patents belong to 8 unique patent families. Out of 11 patents, 5 patents are active.

How Many Patents did Ameren 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 GrantAmeren Applications FiledAmeren Patents Granted

How many Ameren patents are Alive/Dead?

Worldwide Patents

Countries in which Ameren Filed Patents

United States Of America10

5 Best Ameren Patents

US6774803B1 is the most popular patent in the Ameren portfolio. It has received 28 citations so far from companies like Raymond Donald and Veris Industries.

Below is the list of 5 most cited patents of Ameren:

Publication NumberCitation Count

What Percentage of Ameren US Patent Applications were Granted?

Ameren (Excluding its subsidiaries) has filed 9 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 7 have been granted leading to a grant rate of 87.5%.

Below are the key stats of Ameren patent prosecution at the USPTO.

Which Law Firms Filed Most US Patents for Ameren?

Law FirmTotal ApplicationsSuccess Rate


What are Ameren key innovation segments?

What Technologies are Covered by Ameren?

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

R&D Focus: How has Ameren’s search focus changed over the years?


Interested in knowing about the areas of innovation that are being protected by Ameren?

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Our comprehensive report provides an in-depth look into the patent portfolio. The report includes a breakdown of the patent portfolio across various technologies, listing the patent along with brief summaries of each patent's technology.