John C. McKay — 15 Patents at Gatekeeper Systems

John C. McKay has been granted 15 US patents while listed as an inventor at Gatekeeper Systems. The first was granted in 1999 and the most recent in May 2024. John C. McKay ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list John C. McKay in Placentia, CA, US.

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #	Title	Co-Inventors	Date
11975568	Self-adjusting caster assemblies	—	2024-05-07
11279173	Wheels for non-motorized vehicles	—	2022-03-22
9669659	Brake mechanism for a non-motorized wheeled vehicle	Stephen E. Hannah	2017-06-06
9358835	Wheels for non-motorized vehicles	—	2016-06-07
9205702	Non-motorized vehicle wheel replacement treads and methods	Stephen E. Hannah	2015-12-08
8973716	Brake mechanism for a non-motorized wheeled vehicle	Stephen E. Hannah	2015-03-10
8693965	Solar powered transmitter	Stephen E. Hannah, Jesse M. James	2014-04-08
8578984	Non-motorized vehicle wheel replacement treads and methods	Stephen E. Hannah	2013-11-12
8364105	Solar powered transmitter	Stephen E. Hannah, Jesse M. James	2013-01-29
6604249	Advanced dual-flush valve	Joseph Han, Tracy James Haggstrom, Farid Maiwandi	2003-08-12
6442772	Advanced dual-flush valve	Joseph Han, Tracy James Haggstrom, Farid Maiwandi	2002-09-03
6339882	Flush valve	Kent Goessling	2002-01-22
6081938	Dual-flush valve	Richard C. McClure, Miguel C. Garcia	2000-07-04
5983407	Coccygeal protective pad	—	1999-11-16
5966749	Adjustable flush valve	Kent Goesling, Oscar Dufau, Steven E. Maple, Adolf Schoepe	1999-10-19

John C. McKay — 15 Patents

Issued Patents All Time

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