You cannot afford to worry about patents now. Just avoid them altogether.
Also, just don't look anything up, or send emails to your co-founder / or anyone else specifying any patents. Because if you will get sued, you will have to disclose those emails in discovery. And violating a patent knowingly is a whole different story than violating it unknowingly.
Also, just don't look anything up, or send emails to your co-founder / or anyone else specifying any patents. Because if you will get sued, you will have to disclose those emails in discovery. And violating a patent knowingly is a whole different story than violating it unknowingly.