Houge's the brand. RSK-Mk1 is the model (Ritter Survival Knife). Sold exclusively at https://knifeworks.com/dr/
Benchmade used to make a variant of their Griptilian that he designed (the "Ritter Grip", and when they discontinued it, Hogue stepped up (proceeds go to support Ritter's https://kniferights.org/ organization)
Here's a parametric search for other knives that are made in the USA out of the same materials. They're all expensive. Fortunately, there are very good pocket knives for under a third the price from brands like Civivi, Vosteed, and CJRB if those specific points aren't critical.
