Moller International (fka MLER)

[j5mith]

...And of that long list of patents (excluding the two design patents, which just cover the look of an item), all but four are expired. Of the remainder:

Patent 6,164,942 - Rotary engine having enhanced charge cooling and lubrication (Expires December 17, 2018)

Patent 6,325,603 - Charge cooled rotary engine (Expires June 24, 2020)

Patent 6,450,445 - Stabilizing control apparatus for robotic or remotely controlled flying platform (Expires October 12, 2021)

Patent 6,808,140 - Vertical take-off and landing vehicles (Expires February 7, 2023)

Given that no one else seems especially interested in the rotary engine, the two patents relating to the engine aren't particularly valuable and they expire soon anyway.

Lots of stabilizing systems for drones are already available on the market, so the next one doesn't seem to be particularly valuable.

And the final one covers a variation of Moller's Skycar with two engines and two small stabilizing engines, rather than the four engines of the M400.

Without knowing the content of the so-called additional inventions, their value is unknown. But based on what is known, the intellectual property doesn't look particularly valuable, and most of it expires within a few years.