Thanks for your very detailed response. I was able to do a lot of research with this :yourock:
After looking at all the available gloves you listed, plus others, they all appear problematic in some way.
No gloves, with the exception of some specialized industrial gloves (basically chain mail for knive sharpening), have Kevlar or other cut protection material in the palm, just leather.
Some gloves do not run the protective material up the fingers, just the knuckles.
Almost every chainsaw glove only has Kevlar or other cut protective material on the back of the left hand (Husqvarna, Superior Glove Lumberworks, Oregon orange backed glove now coming available in US per Oregon CS). Since I injured my right hand, that is important to me. I will note that supposedly almost 100% of documented chainsaw injuries are to the left hand. I guess that means lefties operate chainsaws right-handed? My injury was from a clearing saw, not a chainsaw, so protection for both hands is important to me.
The Chainsaw gloves sold by Forestry Suppliers (made by Safeguard America) have Kevlar on the back of both gloves, but per the company it is single layer and not certified to any spec.
The best alternative seems to be the Oregon yellow backed gloves available in the European Oregon catalog. They have protection on the backs of both gloves, certified to the European 16 m/s standard, which is the same as the Lumberworks glove. I called Oregon USA CS and they said the orange backed glove was being introduced in the US, she even had a sample, but she verified it only had the extra protective material on the back of the left hand. She could find no info on the yellow glove being sold in the US. Apparently, they only see a market for left hand protection, like everyone else.
I will try to see if I can get the Oregon yellow gloves shipped from the UK to the US, unless someone has a better suggestion.