7 patents
Utility
Systems and Methods to Recover Value-Added Materials from Gypsum
9 Feb 23
Disclosed herein are systems and methods from processing flue gas desulfurization (FGD) gypsum feedstock and ash feedstocks, either separately or together.
Lucien M. Papouchado, Barry E. Sheetz, Leonard Passmore, Joseph D. Preston
Filed: 12 Oct 22
Utility
Systems and Methods to Treat Flue Gas Desulfurization and Metal-bearing Waste Streams to Recover Value-added Materials
11 Nov 21
Disclosed herein are systems and methods from processing flue gas desulfurization (FGD) gypsum feedstock and ash feedstocks, either separately or together.
Lucien M. Papouchado, Barry E. Scheetz, Joseph D. Preston
Filed: 21 Jul 21
Utility
Systems and Methods to Recover Value-Added Materials from Gypsum
2 Sep 21
Disclosed herein are systems and methods from processing flue gas desulfurization (FGD) gypsum feedstock and ash feedstocks, either separately or together.
Lucien M. Papouchado, Barry E. Sheetz, Leonard Passmore, Joseph D. Preston
Filed: 15 May 21
Utility
System and Methods for Collaborative Research
10 Jun 21
The present invention provides systems and computer-implemented methods for organizations to form collaborative research groups with other organizations, to share information, documents and data, to manage projects, and to participate in real-time collaborative activities.
Himabindu Gaddipati
Filed: 3 Dec 18
Utility
CorrectedSystems and Methods for Using Smart Contracts to Control the
Trade, Supply, Manufacture, and Distribution of Commodities
21 Jan 21
The present principles are directed to systems and methods for providing a trading system cooperatively integrated with manufacturing control and distribution systems, and, more specifically, to provide a trading, clearance, settlement, and depository for securities, commodities, and their derivatives (collectively “securities”) that utilize asset-backed, virtualized data tokens and blockchain technology to facilitate price discovery and automated transactions at all stages of the asset development, manufacturing, and distribution of commodities.
Joseph D. Preston, Dan Alan Preston, Trinitie Marie Vance, Brett C. Simpson, Peter Albert Madakson, William R. Rieger
Filed: 11 Aug 17
Utility
Systems and Methods to Treat Flue Gas Desulfurization Waste to Produce Ammonium Sulfate and Calcium Carbonate Products
29 Jul 20
Disclosed herein are system and methods for producing a high purity ammonium sulfate product as well as either a lower or a high purity calcium carbonate product by reacting flue gas desulfurization (FGD) gypsum feedstock in batch or continuous mode using synthesized ammonium carbonate from ammonia and carbon dioxide gases.
Lucien Papouchado, Barry E. Scheetz, Joseph Preston
Filed: 21 Jan 20
Utility
Systems and Methods to Chemically Treat Metal-bearing Waste Streams to Recover Value-added Materials
29 Jul 20
Disclosed herein are system and methods to effectively leach coal ash with hydrochloric acid and separate an insoluble silica product and then selectively precipitate, from the leachate, a number to value-added, strategic, marketable products using a hydroxide reagent.
Lucien Papouchado, Barry E. Scheetz, Joseph Preston
Filed: 23 Jan 20
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