John Rader invented the Aheadset - who introduced OVERSIZE?

[FluffyChicken]

Mk1 yes, exactly right, but it was also an exclusive DESIGN licensed/sold to Dia Compe. As I understand it, they then sold the rights to other manufacturers. I am not sure that they registered the STEM though, and so other manufacturers could produce those. But I also recall that there were law suits around all this. I must have a dig around.

https://patents.google.com/patent/US5095770A/enProbably that litigation mentioned?