This one is a bit harder to talk about since its fairly current. In lieu of detailed discussion I’ll link to the details of the patent itself.
patent_11798411
Created a set of excel applications, processes, documentation and training to turn a quarterly 40 hour manual process into a 4 hour semi-automated process with checks and balances.
Motorola radio division had undocumented legacy DOS PC code used to maintain Police/Fire/Rescue radios. The contract was to write a new Windows 95 version, the solution was patented by Motorola.