All good points Jasper ... but I'll continue to list Thermal Energy Engines, as it seems entirely unreasonable to think that someone would build or alter a mold, and have that name molded into more than some 6,000 of them, if they never existed as some form of an entity, thus adding them as such an entity to the chain is entirely reasonable, while as corollary, it would be unthinkable deleting them from the chain of provenance, given the physical evidence extant!
Now, I am willing to entertain the proposition that they likely never sold a single unit under that name, and became, got bought up by, or otherwise changed names to Solar Engines, before any significant marketing took place, which is not uncommon in the small business world. Similarly, it is likely that they never possessed an actual business address under the Thermal Energy Engines moniker, and quite possibly never took out a business license under that name either.
It is fairly certain that we will never know the whole story behind the who, what or why of Thermal Energy Engines of Phoenix Arizona. However, we do have indisputable evidence that somebody thought that would be THE name to be associated with the updated Solar #1 Stirling Cycle engine in its infancy, and as such they will be included in my thumbnail history.
Please do feel free to create your view of this history, to conform to your own ideas, as we all must.