Russian Empire colour photos

It turned out that russian photographer Prokudin-Gorskiy invented a method of making colour photos and made them A LOT in 1907-1915. But actually it were tripple negatives, which eventually came to the library of Congress, and only recently they were made real pictures again.
The link is
http://www.loc.gov/exhibits/empire/
There are some examples of it.
There is also entire collection link, where you may download b/w triple positives. I downloaded one of them and made the cool colour photo myself in an image editor (although it was jpg-file and not bif tiff).

That's interesting. I wonder why he wasn't credited for invention of color photograph?

Probably the same reason Popov and Tesla aren't given much credit but Marconi and Edison are: good scientists, but poor businessmen.