[jesusmichael]

The legal test of what IP would belong to your employer is that if the IP you developed was at the direction and expense of your employer. By expense, would also mean if you used knowledge gained specifically by working for your employer.

That is usually interpreted to mean... That you are building competing or complementing products to your employers.

For example if you build a great CRM system... And you work for a company that builds a word processor... They probably dont have a claim.... But if you build a specialized font system... They would probably have a claim based on the fact that you used knowledge gained by working with them.