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Patent applications and USPTO patent grants for Lang; John Stewart.The latest application filed is for "system and method for treating wastewater".
Patent | Date |
---|---|
System and method for treating wastewater Grant 10,604,429 - Lang | 2020-03-31 |
System and method for treating wastewater Grant 10,246,359 - Lang | 2019-04-02 |
System And Method For Treating Wastewater App 20190039925 - Lang; John Stewart | 2019-02-07 |
Venturi Apparatus And Method Of Use App 20180162757 - Lang; John Stewart | 2018-06-14 |
System and Method for Treating Wastewater App 20170327395 - Lang; John Stewart | 2017-11-16 |
Hydraulic jet flash mixer with gas diffusion port in the flow deflector App 20040246813 - Lang, John Stewart | 2004-12-09 |
Second embodiment App 20020149995 - Lang, John Stewart | 2002-10-17 |
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