Inventor
MCKAY JOHN C
US11 patents
⚠️ This page may combine multiple inventors who share the name “MCKAY JOHN C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GATEKEEPER SYSTEMS INC
8 patentsUS9669659B2Jun 6, 2017
Brake mechanism for a non-motorized wheeled vehicle
GATEKEEPER SYSTEMS INC26 citations93
US9205702B2Dec 8, 2015
Non-motorized vehicle wheel replacement treads and methods
GATEKEEPER SYSTEMS INC23 citations92
US8578984B2Nov 12, 2013
Non-motorized vehicle wheel replacement treads and methods
GATEKEEPER SYSTEMS INC31 citations92
US8364105B2Jan 29, 2013
Solar powered transmitter
GATEKEEPER SYSTEMS INC10 citations84
US9358835B2Jun 7, 2016
Wheels for non-motorized vehicles
GATEKEEPER SYSTEMS INC10 citations83
US8693965B2Apr 8, 2014
Solar powered transmitter
GATEKEEPER SYSTEMS INC4 citations73
US11279173B2Mar 22, 2022
Wheels for non-motorized vehicles
GATEKEEPER SYSTEMS INC0 citations61
US11975568B2May 7, 2024
Self-adjusting caster assemblies
GATEKEEPER SYSTEMS INC0 citations51