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For the Inventor, By the Inventor

Runcorn, United Kingdom

Acal Energy Limited


USPTO Granted Patents = 10

% Expired Patents = 90.0


Forward Citations = 15

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9 inventors (with patents filed for the assignee):

goldMedal Kathryn Knuckey (7 out of 7 patents)

silverMedal Andrew Martin Creeth (7 out of 12 patents)

bronzeMedal Andrew Potter (3 out of 3 patents)

4.  David Rochester (3 out of 3 patents)

5.  Clare Louise Downs (1 out of 2 patents)

6.  Brian Clarkson (1 out of 2 patents)

7.  Emma Farndon (1 out of 2 patents)

8.  Belloumi Kangati (1 out of 1 patent)

9.  Robert J Longman (1 out of 11 patents)

10.  Andrew Robert Potter (1 patent)

11.  David Ward (0 patent)

12.  Andrew Creeth (0 patent)

13.  Clare Downs (0 patent)

14.  Andrew Creeth (0 patent)

15.  Jian-Guo c/o Acal Energy Limited Liu (0 patent)


10 patents:

1. 9385391 - Fuel cells (2016-07-05),
2. 9362584 - Regenerative fuel cell with catholyte comprising a polyoxometalate and a vanadium (IV)-compound (2016-06-07),
3. 9209476 - Fuel cells (2015-12-08),
4. 9136554 - Fuel cells (2015-09-15),
5. 9029042 - Redox fuel cell (2015-05-12),
6. 9005828 - Redox fuel cells with a catholyte solution containing a polyoxometallate (2015-04-14),
7. 8951695 - Redox fuel cell with catholyte redox mediator (2015-02-10),
8. 8647781 - Redox fuel cells (2014-02-11),
9. 8603684 - Fuel cells (2013-12-10),
10. 8492048 - Fuel cells (2013-07-23),
Acal Energy Limited is a British company that specializes in developing advanced fuel cell technology. They focus on creating sustainable and cost-effective solutions for the automotive and energy industries. Acal Energy is committed to reducing the environmental impact of traditional energy sources through innovation and research.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

10 Patents

#5 in Runcorn

#1,730 in United Kingdom

#55,986 in the World

Runcorn, GB
Runcorn, United Kingdom

Acal Energy Limited

Forward Citations = 15

9 inventors:

goldMedal Kathryn Knuckey (7 out of 7 patents)

silverMedal Andrew Martin Creeth (7 out of 12 patents)

bronzeMedal Andrew Potter (3 out of 3 patents)

4.  David Rochester (3 out of 3 patents)

5.  Clare Louise Downs (1 out of 2 patents)

Please report any incorrect information to [email protected]
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