What comic book inventions should the characters produce for the mass market?

[Tzigone]

We all know comics are full of amazing technology that heroes and villains just never seem to want to produce for the mass market. Sometimes to maintain a competitive advantage (I guess they think superheroing is more useful to the world than the tech). Sometimes there's a handwavey explanation that it's not quite ready for primetime (even though it seems to be in practical use). Somtimes they think it's too dangerous in the wrong hands. But mostly, I think some of these just need to be secret to keep the world "normal" and like our world.

So which ones are some of the technologies that are known and understood and should be marketed, but aren't?\

I'll start with Karen Beecher's solar panels. Per the '80s Who's Who, her antennae are solar collectors that emit eyebolts. I don't know if solar powers he wings, too. If so, this is absolutely incredible solar tech (even moreso for the 1980s). Phenomenally useful to the world. And it would quickly make her a billionaire. Why isn't it on the market? She has connection to Wayne Enterprises (and Queen Industries, depending on the era) via Dick and Roy, so the business links are there. And either be all over it, but especially Ollie. And, depending on when introduced, it's cheap enough she could afford to make it and could produce it without much special equipment when she was a teen.

Now, I admit, it would undoubtedly cause economic and political instability. Some countries are very dependent on oil exports, and some of them aren't very stable, anyway. People would die. But so many could have so much improvement in quality of life. And the pollution/emissions going down could save so many lives. But I gotta admit, I really don't know if that explanation for her suit power (or any other) ever made it into the actual narrative part of the comics. But this is a fun one to play with to me - how it'd change the world. Especially with timeslides - you get to play with what happen if the tech was introduced in 1980 or 1990 or 2000 or 2010 or 2020, and it's different each time, as political and technological realities change.