Identify Shared Parameters in a project

Hope someone can help.

With Revit 2016 or 2017 api is it possible to identify Shared Parameters belonging to a family loaded into the project or project shared parameters that are no longer attached to a Category but does not include the Family Shared Parameters.

For example:

Using a filter provides all shared parameters including those no longer attached to a Category and those within Families loaded into the project.

Parameter1 – Project Shared Parameter
Parameter2 – Project Shared Parameter no longer attached to a Category (removed via Manage=>ProjectParameters=>Remove)
Parameter3 – Family Shared Parameter within the project

Utilising BindingMap provides me with all project Shared parameters still bound to a Category.

Parameter1 – Project Shared Parameter

I am looking for a way to identify either Parameter2 or 3 separately.
Any assistance and code examples would be much appreciated.