Is it possible to replace the glass in sliding glass doors?

We have four sets of sliding glass doors- ALL of which, are fogged in-between the double-panes. Rather than rip out the entire doors, it certainly SEEMS like there should be a way to simply remove the glass from the “C” shaped aluminum frame and replace it with another glass assembly. I’ve removed the entire glass ‘sandwich’ from the frame before- so I know it’s possible… but no one locally seems to know who could provide the replacement assembly. And, of course, I have absolutely NO idea of the doors’ original manufacturer. Ideas/suggestions anyone?