SoftWheel
"First developed to smooth the ride of people confined to wheelchairs,
Israeli-based SoftWheel has taken their in-wheels suspension concept and
refined it for a wide of cyclists. By essentially isolating the bicycle
rim from the hub with a set of three tunable shocks with hydraulic
rebound damping, the Fluent bike wheel is said to deliver an unmatched
level of comfort, while maintaining ride control and stability, and
actually reducing energy lost when riding over obstacles and surface
irregularities."
https://www.bikerumor.com/2016/05/20/softwheel-fluent-suspends-bike-wheels/
"Take a closer look at options for city and even e-bikes
after the jump…"
Loopwheel: