The core criterion for whether something can be property is whether it is economically rival, i.e. whether possession/use by one party inherently excludes others from equivalent possession/use. This is true for all physical resources, including most items that people regard as "means of production", making them natural property, but isn't true for most of the things IP laws apply to.
No. That is property and can be owned. IP is not tangible, can be exactly copied once observed, without effecting the original.
How are you defining 'ownership' in a tangible way?