>The basic concept of MagSafe is copied from the magnetic power connectors that are part of many deep fryers and Japanese countertop cooking appliances since the early 2000s in order to avoid spilling their dangerously hot contents.[2][3][4] Apple was granted US Patent No. 7311526 on MagSafe ("Magnetic connector for electronic device", issued in 2007) as MagSafe was deemed to be a sufficient improvement due to the connector being symmetrical and reversible, and the fact that magnets within a connector are arranged in opposing polarities for improved coupling strength.

IMO, it's outrageous that improvement was enough for the patent not to have failed on prior art grounds.

I have one of those Japanese countertop cooking appliances. The magnetic connector is symmetrical. It's very obvious that Magsafe ripped off the design.