Francis A. Lesters

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Naperville, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Waste foundry sand to frac sand process
- Patent number 9,192,984
- Issue date Nov 24, 2015
- Francis A. Lesters
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Grant
Process for rockwool derivative briquettes
- Patent number 9,073,238
- Issue date Jul 7, 2015
- Francis A. Lesters
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
GLASS-MAKING-QUALITY GRANULATED SLAG PROCESS
- Publication number 20190169703
- Publication date Jun 6, 2019
- Peter Beemsterboer
- C21 - METALLURGY OF IRON
Information Patent Application
GLASS-MAKING-QUALITY GRANULATED SLAG PROCESS
- Publication number 20160326040
- Publication date Nov 10, 2016
- Peter Beemsterboer
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
WASTE FOUNDRY SAND TO FRAC SAND PROCESS
- Publication number 20150114888
- Publication date Apr 30, 2015
- Francis A. Lesters
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Application
PROCESS FOR ROCKWOOL DERIVATIVE BRIQUETTES
- Publication number 20140159272
- Publication date Jun 12, 2014
- Francis A. Lesters
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL