0pt0, I’ll try to steer you towards the inventor. I’m assuming you have the message in the form 5,5,4,2,5,11,6,4. Start with drxx’s excellent hint at #76. That gives you the final 6,4, and is six letters. Add a single letter abbreviation for the first 5, and add the 2. That’s nine letters. Then think of a common three-letter synonym for the second 5.
If you put all those letters into the following the inventor should appear.
https://anagram-solver.net/
Just change the final three-letter synonym until you find one that works.
It’s not succinct, but it should work