[Professional Engineer]

And, amongst all that, he invented the waterbed.

AutoCad as well (Drafting Dan).

[hadit2here]

Aren’t you forgetting the remote material manipulation devices that later, when finally developed, the “inventors” of them called them “Waldoes”, in full deference and tribute to RAH and “Waldo and Magic, Inc.”, the true inventor?

[Drumbo]

And, amongst all that, he invented the waterbed.

AutoCad as well (Drafting Dan).

Don't forget that he also invented the robotic arm (Waldo - 1942 using the pseudonym Anson Macdonald) See: http://www.technovelgy.com/ct/content.asp?Bnum=23 and the powered armoured suit now being developed by our military (Starship Troopers - 1959). See: http://www.freerepublic.com/focus/news/798543/posts?page=32#32

Had Heinlein taken patents on his ideas, he'd have been extremely wealthy. His contributions to our society are immeasurable.