As shown on the video below the angle of attack (AoA) is limited at about 15-20 degrees. So the lift coefficient (CL) is also limited because of stall beyond this value:
There are some means to increase the CL such like slots and flaps that are generally used for takeoff and landing (see High lift coefficient and biplane kite and the video below) while the drag coefficient is also increasing:
CFJ (video below) looks to be another possibility to increase both AoA and CL while decreasing also the drag coefficient until a negative value = trust.
Scientists are generally not directly interested in industrial applications, just as philosophers such as Kant or Hegel rarely popularized their writings.
It is up to industrialists (who may also be researchers) to become aware of the theories that are circulating to see which ones would find applications in their respective fields.