3Dlabs had Glint out on the PC platform as the first 3D chip to make any decent cash and/or penetrate that market to any degree.
This was openGL based which, to be quite frank, always had a far superior feature set to whatever 3dfx put out. Since glide was really only a perverted form of openGL anyway....
Evans & Sunderland were first with hardware T&L, Nvidia creeping on the scene with a specification that performed about 2% good as they claimed it would (the origional GeForce was supposed to be a 50Gflop unit that performed WORSE than a 3Gflop 3dlabs Glint T&L chip..wtf went on there?) and about 5 years later than everyone else.
To call either of these companies innovative is a gross insult to all the engineers who pioneered these technologies.
The only thing 3dfx and Nvidia have done is stripped down pre-existing specifications and sell them at a bargan basement price - and for some reason everybody loves them for it.
We'll see when the whole industry falls flat on its' face (well...things aren't looking too rosy atm, are they?)