Hi, I've created a database in my own time using my own resources for my current employer a couple of years ago but didn't document any arrangements with my boss at the time. He has since left the business.
Another company is interested in purchasing the database subject to receiving evidence from my employer stating that the software is my intellectual property.
In order to help avoid any stand off with my employer, is there any other way of proving intellectual property by e.g. re-designing the application to incorporate the other company formats? In this example, what is deemed to be a significant enough change to help appease any concerns from all parties?