Johnny James Clark — 4 Patents at Filmax

Johnny James Clark has been granted 4 US patents while listed as an inventor at Filmax. The first was granted in 1997 and the most recent in August 2008. Johnny James Clark ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Johnny James Clark in Maryville, TN, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
7409849	Oil filtration system for plural phase power equipment tanks	David M. Butler	2008-08-12
6476723	Insulating oil leak containment	David C. Campbell, David McMahan Butler	2002-11-05
6052060	Temperature monitor for electrical switchgear	David McMahan Butler	2000-04-18
5691706	Transformer leak alarm	David McMahan Butler	1997-11-25

Johnny James Clark — 4 Patents

Issued Patents All Time

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