The object
Ernest Emerson invented the Wave Feature, a blade-spine hook that catches a pocket edge to open a folding knife during the draw. His official company identifies its long-running maker operation, and the mechanism influenced rapid-deployment folding-knife design.
What Ernest did
invented the patented Wave Feature, a blade-spine hook that opens a folding knife as it is drawn from a pocket
Why it matters
The Wave Feature created a recognizable quick-opening method licensed and emulated across modern folding knives.
Living-status check
BLADE Magazine published a March 22, 2024 roundtable quoting Emerson about his current U.S. knife-manufacturing work.