Michael E. Drager — 6 Patents at Ecowater Systems

Michael E. Drager has been granted 6 US patents while listed as an inventor at Ecowater Systems. The first was granted in 1992 and the most recent in July 1993. Michael E. Drager ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Michael E. Drager in Windom, MN, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date
D337633	Bypass valve for a liquid treatment tank	Edward J. Tischler	1993-07-20
D336051	Water softener control and indicating panel	Dennis G. Winberg, Jeffrey Zimmerman, John R. Nelson	1993-06-01
5162080	Rotary flow control valve	Bruce Gillette, Edward J. Tischer	1992-11-10
5152321	Bypass valve	Edward J. Tischler	1992-10-06
D328330	Water softener	Edward J. Tischler, Dennis G. Winberg	1992-07-28
D328331	Water softener	Edward J. Tischler, Dennis G. Winberg	1992-07-28

Michael E. Drager — 6 Patents

Issued Patents All Time

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