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Optiprop Trademarks
OPTIPROP
Resin-coated proppants for use in fracturing oil wells
Registered
·
April 12, 2005
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78607176
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OPTIPROP
resin-coated proppants for use in fracturing oil wells
Cancelled
·
October 23, 1995
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75009287
·
OPTIPROP G2
Resin-coated proppants for use in the oil and gas industry
Registered
·
March 26, 2014
·
86233091
·
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