User blog comment:B214/Question and Answers 6/@comment-207.242.44.6-20181113203303/@comment-10330822-20190113014004

Correct. That's why its isolated to just High School DxD EX at the moment. Because such sophisticated Artifical Sacred Gears don't exist in the present timeline.

I'm not going to say no, because you never know. However, I would say you'd think they'd discover how to do it by now if it was possible. The Artifical Sacred Gears are a recent development, partially because Azazel, their creator, has never had such access to the Sacred Gear System as he has now.