As I have often said, the major club companies tend to only file design patent applications on products that have secured a spot in their product line-up. Check out this design from a recent Acushnet design patent. Notice there is no sole-entry shaft sleeve adjustability port; and is that a rotating triangle? Pretty radical for Titleist! Do you think we will ever see this on store shelves?
My money is on this design never seeing the light of day!