I have found products similar to what I want to create but they are meant to be mounted permanently to the owners dock instead of being removable to take with the boat to other docks that may require that type of fender. The following articles highlight damage done to boats by docks and examples of current types of fenders.

http://www.svsarah.com/Sarah/ewRubRailDamage.html -details damage and repair steps taken to fix damage to a boat due to a pole.

https://www.whiskeycreektrading.com/fold-go.html -This is similar to what I want to create but this only works on 4”x4” square poles and only covers the front face of the pole. The issues with this is because if its attachment method it can be pushed around the side of the pole if the boat rocks up against it and if a marina has different size/shape poles it would be useless. It is also 40 inches tall so it would be difficult to store on most boats.

https://www.anchoring.com/blogs/anchoring/dock-bumpers-and-fenders-protecting-your-boat-from-the-dock -list of several current fender types. My design is most similar to the piling fender but it would be removable and able to fit any size/shape pilings.

-A method we’ve used at one marina to keep the boat off the pole. Note that not many docks have a nail driven into the top of them like this one. If it was rougher in the marina or the wind was faster he bumper could easily be pushed around the side of the pole.

-another way of tieing the fenders to the pole but the disadvantage is the shape of the boats hull makes it difficult to keep it away when the bumpers are placed down lower.

-Here’s an example of how the shape of a boat makes it difficult to use fenders near the waterline. Because the boat tapers away from the dock as it nears the waterline the lower a fender is the wider it must be. in the photo above the fender is around 1.5 feet in diameter but the boat still rubs against the dock pole.

-Example of some damage to a boat from rubbing against a dock pole.