Build a couple pedals and you quickly realize VERY few companies are putting out novel effects circuits. Not unlike tube amps, everything is based off a couple different designs and then maybe a popular mod is thrown on a switch as a differentiator.
Screw the Behringers of the world who steal wholesale designs, but pedal builders have always riffed off of each other - not unlike how we lift musical ideas from our musical heroes. That approach is part of the tradition and IMO actually helps drive innovation.