The little flip-over locks on my oven door hinges were bent and broken, preventing me from removing the oven door. It took a little bit of searching to determine that my oven purchased from Ikea was actually built by Whirlpool, and finally what were the correct part numbers for both hinges. Much to the credit of AppliancePartsPros.com, they were the only site that specifically labeled these hinges as Left and Right which helped greatly - even the parts diagrams from Whirlpool were not specific in showing that these were different for each side.
I had to use two spare bolts as wedges to hold open the broken hinges so I could finally remove the oven door (my original task was to tighten and repair the bracket holding on the front glass and clean the inside of the glass of something that had dripped down inside the door). I was able to disassemble/reassemble the door and replace both hinges with nothing more than a #2 Phillips screwdriver. Now everything looks and works just like new.