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Grey glass composition
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Patent number 7,622,410
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Issue date Nov 24, 2009
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Guardian Industries Corp.
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Anthony V. Longobardo
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C03 - GLASS MINERAL OR SLAG WOOL
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VIG evacuation with plasma excitation
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Patent number 6,692,600
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Issue date Feb 17, 2004
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Guardian Industries Corp.
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Vijayen S. Veerasamy
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Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
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Green privacy glass
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Patent number 6,413,893
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Issue date Jul 2, 2002
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PPG Industries Ohio, Inc.
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Larry J. Shelestak
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C03 - GLASS MINERAL OR SLAG WOOL
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Gray glass composition
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Patent number 6,274,523
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Issue date Aug 14, 2001
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PPG Industris Ohio, Inc.
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John F. Krumwiede
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C03 - GLASS MINERAL OR SLAG WOOL
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Gray glass composition
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Patent number 6,114,264
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Issue date Sep 5, 2000
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PPG Industries Ohio, Inc.
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John F. Krumwiede
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C03 - GLASS MINERAL OR SLAG WOOL
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Low transmittance glass
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Patent number 5,932,502
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Issue date Aug 3, 1999
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Guardian Industries Corp.
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Anthony Vincent Longobardo
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C03 - GLASS MINERAL OR SLAG WOOL
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Bronze glass composition
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Patent number 5,565,388
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Issue date Oct 15, 1996
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PPG Industries, Inc.
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John F. Krumwiede
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C03 - GLASS MINERAL OR SLAG WOOL
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