RP

Roger William Phelps

SI Siemens Industry: 4 patents #98 of 836Top 15%
ET Evoqua Water Technologies: 3 patents #55 of 216Top 30%
ST Siemens Water Technologies: 3 patents #18 of 109Top 20%
Overall (All Time): #460,189 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
10507431 Membrane cleaning with pulsed airlift pump Fufang Zha, Gerin James, Joseph E. Zuback, Peter Zauner 2019-12-17
9573824 Membrane cleaning with pulsed airlift pump Fufang Zha, Gerin James, Joseph E. Zuback, Peter Zauner 2017-02-21
9206057 Membrane cleaning with pulsed airlift pump Fufang Zha, Gerin James, Joseph E. Zuback, Peter Zauner 2015-12-08
8840783 Water treatment membrane cleaning with pulsed airlift pump Fufang Zha, Gerin James, Joseph E. Zuback, Peter Zauner 2014-09-23
8622222 Membrane cleaning with pulsed airlift pump Fufang Zha, Gerin James, Joseph E. Zuback, Peter Zauner 2014-01-07
8377305 Continuously variable aeration Fufang Zha, Warren Thomas Johnson, Thomas William Beck, Etienne Ulysse Brois 2013-02-19
8372282 Mixing chamber Fufang Zha, Etienne Ulysse Brois 2013-02-12
8372276 Membrane cleaning with pulsed airlift pump Fufang Zha, Gerin James, Joseph E. Zuback, Peter Zauner 2013-02-12
8287743 Membrane cleaning with pulsed airlift pump Fufang Zha, Gerin James, Edward Joseph Zuback, Peter Zauner 2012-10-16
D637208 Airlift pump Peter Zauner, Fufang Zha, Tomasz Swiatek 2011-05-03
7862719 Square membrane manifold system Robert McMahon, David John Cox, Fufang Zha, Warren Thomas Johnson, Sargon Barkho 2011-01-04