John S. Roden — 5 Patents at Imation

John S. Roden has been granted 5 US patents while listed as an inventor at Imation. The first was granted in 1993 and the most recent in October 2000. John S. Roden ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list John S. Roden in Windom, MN, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6139946	Magnetic recording media incorporating a quaternary ammonium functional binder and magnetic pigment surface treated with compound having acidic and electron withdrawing functionalities	Joseph Bailey	2000-10-31	$1,936,000
5626956	Hexagonal magnetic ferrite pigment for high density magnetic recording applications	David M. Hopstock, Gunther H. Dierssen, Ronald S. Sapieszko	1997-05-06	$10,189,000
5616414	Hexagonal magnetic ferrite pigment for high density magnetic recording applications	David M. Hopstock, Gunther H. Dierssen, Ronald S. Sapieszko	1997-04-01	$4,714,000
5378384	Process of making hexagonal magnetic ferrite pigment for high density magnetic recording applications	David M. Hopstock, Gunther H. Dierssen, Ronald S. Sapieszko	1995-01-03	$4,355,000
5240626	Aqueous ferrofluid	Ranjit Thakur	1993-08-31	$7,969,000

John S. Roden — 5 Patents

Issued Patents All Time

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