Phelps; Roger William
Patent Applications and Registrations
Patent applications and USPTO patent grants for Phelps; Roger William.The latest application filed is for "membrane cleaning with pulsed airlift pump".
- Phelps; Roger William - Kings Langley AU
- Phelps; Roger William - New South Wales AU
| Patent | Date |
|---|---|
| Membrane Cleaning With Pulsed Airlift Pump App 20200078741 - Zha; Fufang ; et al. | 2020-03-12 |
| Membrane cleaning with pulsed airlift pump Grant 10,507,431 - Zha , et al. Dec | 2019-12-17 |
| Membrane Cleaning With Pulsed Airlift Pump App 20170113188 - Zha; Fufang ; et al. | 2017-04-27 |
| Membrane cleaning with pulsed airlift pump Grant 9,206,057 - Zha , et al. December 8, 2 | 2015-12-08 |
| Water treatment membrane cleaning with pulsed airlift pump Grant 8,840,783 - Zha , et al. September 23, 2 | 2014-09-23 |
| Membrane Cleaning With Pulsed Airlift Pump App 20140158618 - Zha; Fufang ; et al. | 2014-06-12 |
| Membrane cleaning with pulsed airlift pump Grant 8,622,222 - Zha , et al. January 7, 2 | 2014-01-07 |
| Membrane Cleaning With Pulsed Airlift Pump App 20130153496 - Zha; Fufang ; et al. | 2013-06-20 |
| Continuously variable aeration Grant 8,377,305 - Zha , et al. February 19, 2 | 2013-02-19 |
| Membrane cleaning with pulsed airlift pump Grant 8,372,276 - Zha , et al. February 12, 2 | 2013-02-12 |
| Mixing chamber Grant 8,372,282 - Zha , et al. February 12, 2 | 2013-02-12 |
| Membrane Cleaning With Pulsed Airlift Pump App 20120061333 - Zha; Fufang ; et al. | 2012-03-15 |
| Membrane Cleaning With Pulsed Airlift Pump App 20110198283 - Zha; Fufang ; et al. | 2011-08-18 |
| Membrane Cleaning With Pulsed Arilift Pump App 20110100907 - Zha; Fufang ; et al. | 2011-05-05 |
| Airlift pump Grant D637,208 - Zauner , et al. May 3, 2 | 2011-05-03 |
| Square membrane manifold system Grant 7,862,719 - McMahon , et al. January 4, 2 | 2011-01-04 |
| Operating Strategies in Filtration Processes App 20090001018 - Zha; Fufang ; et al. | 2009-01-01 |
| Square Mbr Manifold System App 20080210623 - McMahon; Robert James ; et al. | 2008-09-04 |
| Continuously Variable Aeration App 20080156745 - Zha; Fufang ; et al. | 2008-07-03 |
| Mixing chamber App 20070007214 - Zha; Fufang ; et al. | 2007-01-11 |
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