John Haddock — 3 Patents at Alto U.S.

John Haddock has been granted 3 US patents while listed as an inventor at Alto U.S.. The first was granted in 1991 and the most recent in August 2006. John Haddock ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John Haddock in Uxbridge, ON, CA.

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Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
7096516	Alarming plumbing screen	Allen Moore, Jr.	2006-08-29
6578858	Floor surface treatment apparatus with dolly	—	2003-06-17
5046728	Chalk holder and scuff gauging device	—	1991-09-10

John Haddock — 3 Patents

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