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DERWENT PROCOLOUR
|
|
United States Patent and Trademark Office
|
16
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2018-10-30
|
|
|
details
|
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DERWENT PRECISION
|
|
United States Patent and Trademark Office
|
16
|
2018-05-29
|
|
|
details
|
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DERWENT CHARCOAL
|
|
United States Patent and Trademark Office
|
16
|
2016-03-08
|
|
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details
|
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DERWENT GRAPHIK
|
|
United States Patent and Trademark Office
|
16
|
2015-10-06
|
|
|
details
|
|
AUTO+
|
|
United States Patent and Trademark Office
|
16
|
2013-10-01
|
|
|
details
|
|
GRATE 'N' SHAKE
|
|
United States Patent and Trademark Office
|
16
|
2013-10-01
|
2021-02-26
|
|
details
|
|
DERWENT ONYX
|
|
United States Patent and Trademark Office
|
16
|
2011-11-29
|
|
|
details
|
|
|
|
United States Patent and Trademark Office
|
9, 16, 20
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2009-12-22
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2021-02-26
|
|
details
|
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DERWENT ACADEMY
|
|
United States Patent and Trademark Office
|
16
|
2009-09-29
|
|
|
details
|
|
INKTENSE
|
|
United States Patent and Trademark Office
|
16
|
2008-06-24
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|
|
details
|
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COLOURSOFT
|
|
United States Patent and Trademark Office
|
16
|
2008-06-24
|
|
|
details
|
|
nobo
|
|
World Intellectual Property Organisation
|
3, 9, 11, 16, 20, 21, 26
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2008-04-11
|
2028-04-11
|
|
details
|
|
|
|
World Intellectual Property Organisation
|
9, 16, 20
|
2007-12-20
|
2027-12-20
|
|
details
|
|
EZ-IN
|
|
World Intellectual Property Organisation
|
16
|
2007-09-03
|
2027-09-03
|
|
details
|
|
DERWENT GRAPHITINT
|
|
United States Patent and Trademark Office
|
16
|
2007-08-07
|
|
|
details
|
|
REXEL
|
|
World Intellectual Property Organisation
|
7, 16, 20
|
2006-08-23
|
2026-08-23
|
|
details
|
|
AQUATONE
|
|
United States Patent and Trademark Office
|
16
|
2003-07-01
|
|
|
details
|
|
GRAPHITONE
|
|
United States Patent and Trademark Office
|
16
|
2003-04-29
|
|
|
details
|
|
HETZEL
|
|
World Intellectual Property Organisation
|
7, 9, 16, 18, 20
|
1996-10-31
|
2026-10-31
|
|
details
|
|
DERWENT
|
|
United States Patent and Trademark Office
|
16
|
1993-09-14
|
|
|
details
|
