Exciting for GE. From what I understand they have a really good "in process" quality solution and once their patent is granted they can license it. Not so good for Sigma, right?
A good reason why GE has the acoustic monitoring patent could be for the following reason
Large companies with a cash-cow product will just do about everything to avoid competition from entering the market. Many organizations are patenting every possible alternative way to manufacture a certain product. These alternative manufacturing ways will never be used by the patenting company. In fact, their only reason for existence is to block competitors from manufacturing a competing product through alternative processes.
For the record, GE was NOT awarded patents ... these 2 applications have been published publicly. There's a big difference, and IMO invalidates the whole article.