IMO patents should not be transferable. And maybe they shouldn't be assignable to corporate entities, only to people. Multiple people at once if they all contributed to the invention.
It is weird and unfortunate that the longstanding deficiencies with patent law (chiefly: issuing patents for things that are too obvious or numerous) are being blamed on transferability of property rights. It’s the same broken intuition as over regulating housing construction and then blaming high housing costs on ownership by Chinese nationals.