Calgary
Canada
4
2011-02-03
The entities that hold a legal rights for patent applications filed by inventor Keays Steven J.:
Steven J. Keays from Calgary, CA has applied for patents for these inventions. The list has both pending applications and granted patents:
Internal combustion water injection engine
#2 | 2010-02-18Internal combustion water injection engine
#3 | 2008-12-04ROTARY AND TRANSLATING DISPLACEMENT DEVICE
#4 | 2008-04-24Internal combustion water injection engine
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