[cashflyer]

I don't know your business, but I think I know who you're talking about. If I'm incorrect, what I'm about to type will not make any sense.

Any good electronics guy could do the component selection if you know the selection criteria... I mean, it's not that hard to plot a performance curve.

You may or may not have to change the name. Depends on how hard each of you want to fight to keep it, depends on who establishes first use in the industry, and depends on if it would create consumer confusion.

I will bet that this will lead to some mudslinging from both sides - but a lot from the side that gets cut out. And I bet there will be the inevitable "mines the original" - "mines better" arguments if he decides to make his own or find a new subcontractor.