Top 10 OU devices for feature film documentary

[Beginners Mind]

Along with a couple others I've been asked by a major film producer to prepare a list of the top 10, well documented OU devices of all time.  These are to be featured in a documentary expected to be seen by over a billion people. 

Why the producer selected me to vet such a list is immaterial.  What is important is providing the best list possible.  I thought a collaborative effort, rather than my input alone, might produce the most optimal list for the film.

If you would like to contribute to the OU devices you would like to see in a major documentary, please post your suggestions to this thread.  The producer asked that the following criteria be met:

-  Output power exceeds input power by at least 1 kW, COP >=1.5, running continuously.
-  Documented by multiple, reliable third-party witnesses, extra points if any are alive and can be interviewed.
-  General description of concept or mechanism of action.
-  Name of inventor and why the device never became commonplace or was suppressed.
-  References to the above for the screen writers.

Due date is August 12, 2022.  Thank you anyone who wishes to help. 
(Please don't get into arguments over the definition of OU.  You get the idea.)

[Zonk]

Given the premise set, I fear that this will be a very short documentary. Almost empty between main and end title credits...

[forest]

There is no single well documented Ou device

[Paul-R]

You might start with the book: "The scientist, the madman, the thief and their lightbulb".

You could discuss the principles behind "free" energy - resonating with the ionoshere, Lawence Rayburn, Tesla's particles streaming from space, and of course, Patrick's book, now residing here:

http://www.free-energy-info.tuks.nl/indexOct2018.html

[Beginners Mind]

OK, permit me to approach this another way.  To my understanding the following devices meet or come close to meeting the criteria.  What other devices do you think should be added to this group?  What devices do you think should be removed from this group, and why?

Holcomb Energy Systems generator
Stan Meyer water car
Thomas Henry Moray radiant energy device
Paul Baumann Testatika generator
Joseph Newman motor
Floyd Sweet VTA
Paramahansa Tewari generator
Clemente Figuera generator
Tariel Kapanadze generator
William F Skinner gravity device