Uploaded August 2026 | Updated September 2026, 1 week ago

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In this video, I did a teardown of a modern Leviton GFCI receptacle. I was amazed at the number of patents used.

High resolution pictures: youtube.com/post/Ugkx2LQtfsgLldEnptmRmyq527AQKpKm8o4a

Some of the related patents:
patents.google.com/patent/US7355117B2/en?oq=US7355117 – tamper resistant patent
patents.google.com/patent/US8242362B2/en?oq=US8242362 – temper resistant wiring device
patents.google.com/patent/US7820909B2/en?oq=US7820909 – temper resistant
patents.google.com/patent/US9053886B2/en?oq=US9053886 – reducing nuisance trips
– interrupter mechanism
patents.google.com/patent/US10483066B2/en?oq=US10483066 – fault circuit interrupter device
patents.google.com/patent/US7697252B2/en?oq=US7697252 – enhanced surge suppression
patents.google.com/patent/US11831139B2/en?oq=US11831139 – processor based
patents.google.com/patent/US11349293B2/en?oq=US11349293 – processor based
patents.google.com/patent/US11456138B2/en?oq=US11456138 Fault circuit interrupter device

00:00 Overview
00:33 Temper-resistant receptacles
01:51 Closer look at the temper-resistant mechanism
03:32 Ground fault detection
05:38 Grounded neutral detection
07:34 Circuit board
08:43 Other safety features, conclusions