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Robin L. Weightman
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Murrysville, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Multiple chamber septic tank with a plurality of large and small ac...
Patent number
11,981,590
Issue date
May 14, 2024
KLEANTU LLC
John R. Smith
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Methods for polishing wastewater utilizing a bed of commingled baux...
Patent number
8,673,152
Issue date
Mar 18, 2014
Alcoa Inc.
John R. Smith
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Systems for polishing wastewater utilizing natural media filtration
Patent number
8,206,586
Issue date
Jun 26, 2012
Alcoa Inc.
John R. Smith
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Patents Applications
last 30 patents
Information
Patent Application
Multiple Chamber Septic Tank with a Plurality of Large and Small Ac...
Publication number
20240279095
Publication date
Aug 22, 2024
KleanTu LLC
John R. Smith
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
Tank Configuration with Enhanced Denitrification
Publication number
20240018026
Publication date
Jan 18, 2024
John R. Smith
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
Multiple Chamber Septic Tank with a Plurality of Large and Small Ac...
Publication number
20230416124
Publication date
Dec 28, 2023
John R. Smith
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
Multiple Chamber Septic Tank with a Plurality of Large and Small Ac...
Publication number
20200024171
Publication date
Jan 23, 2020
John R. Smith
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
INDIVIDUAL SEPTIC TANK UNIT
Publication number
20180155225
Publication date
Jun 7, 2018
John R. Smith
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
METHODS, APPARATUS AND SYSTEMS FOR POLISHING WASTEWATER UTILIZING N...
Publication number
20130240452
Publication date
Sep 19, 2013
John R. Smith
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
METHODS, APPARATUS AND SYSTEMS FOR POLISHING WASTEWATER UTILIZING N...
Publication number
20120223029
Publication date
Sep 6, 2012
CORPORATE ENVIRONMENTAL SOLUTIONS LLC
John R. Smith
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
METHODS, APPARATUS AND SYSTEMS FOR POLISHING WASTEWATER UTILIZING N...
Publication number
20100276360
Publication date
Nov 4, 2010
ALCOA INC.
John R. Smith
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
METHODS, APPARATUS AND SYSTEMS FOR POLISHING WASTEWATER UTILIZING N...
Publication number
20070181511
Publication date
Aug 9, 2007
ALCOA INC.
John R. Smith
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE