The trade names belonged to Agfa who registered them, the rights to use them may well have been passed on but then some were already owned by other companies outside Germany which makes them unusable wolrd wide.
Unfortunately because John of J&C in the US the Rodinal trade name can't be used any longer, he registered the it there Agfa is still in existance but have no financial interest in resolving trade name issues for companies they sold off.
I think that APUG should have a separate sub-forum dedicated just to the permutations and combinations of the corporations that have sprung from Agfa, the products that originated from those corporations, the entities that are or have in the past either manufactured or distributed those products, and the current versions of them all.
It would help if someone would post tables or charts
“Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”
Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2