John R. Grayson — 6 Patents at Aquion

John R. Grayson has been granted 6 US patents while listed as an inventor at Aquion. The first was granted in 1984 and the most recent in February 2001. John R. Grayson ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list John R. Grayson in Inverness, IL, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date
6193882	Pressurized brining system	—	2001-02-27
6129836	Two-chamber fluid control valve and water softener incorporating same	—	2000-10-10
5645105	Tank-filling shut-off valve	—	1997-07-08
D371186	Container for brine and water treatment system	—	1996-06-25
5082557	Control head for water purifier	David Pettinato	1992-01-21
4482456	Reverse osmosis liquid treating apparatus	—	1984-11-13

John R. Grayson — 6 Patents

Issued Patents All Time

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