Motorola invented the cellular "refinement" which enabled mobile telephony to be used by the general public. Prior to this, mobile phone capacity was less than 100 channels for a large metropolitan area, so they couldn't be used widely. On the old "car phone" system, which was actually just a conventional two way full duplex radio, prices for airtime and equipment were huge, and the transmit power was much larger than today's standard by a factor of 20 or more, and the prior systems had no automated coordination of channels/frequencies it was basically old Mabel at the switchboard connecting the other end of your jumbo mobile two-way radio (why the fuck didn't you bring up Marconi? Oh yeah he wasn't Swedish either) to the switched landline network.
Motorola changed all that, with a shared network controlled through automation. This technology was invented by a team lead by Dr. Martin Cooper in the early 1970s, at Motorola.
Motorola also invented the clam shell/flip phone form factor, with the microTac in 1989. Before this, hand held cellular mobile phones were "brick" devices such as the DynaTac, oh yeah, also invented by Motorola in 1983 (actually 1973, but FCC acceptance became final in 1983).
Get your nationalistic head out of the sand and give credit where it's due.
And no, I don't work for Motorola.