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Vertical pipe lining method and system
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Patent number 7,527,076
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Issue date May 5, 2009
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Energy Maintenance Service Group I LLC
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William Lepola
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Method and apparatus for spot repair of pipe
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Patent number 7,523,764
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Issue date Apr 28, 2009
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Energy Maintenance Services Group I, LLC
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William Lepola
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Small diameter pipe repair device
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Patent number 7,514,653
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Issue date Apr 7, 2009
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Energy Maintenance Services Group I LLC
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William Lepola
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR