Talk to an immigration lawyer before you try this.

The H-1B visa was clarified to allow for founder sponsorship, assuming you can demonstrate an employer-employee relationship.

To demonstrate an employer-employee relationship you need to be able to show that you can be fired from your company, which is difficult to show if you're the only two founders on the board, and you each own 50% of the company.

I'm not saying it's impossible, but you really want to make sure you talk to a immigraiton lawyer before you try this. And in either case, H-1B visas are very difficult to get at this point :)