Urea Granulation Technology of Double Drums with a Fluidized Bed(6)
Source： | Date:
2011-04-18
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4. The Patent Holdings of the DDG Technology
During the development of DDG technology, the owner and designers of this
technology had applied for four patents certificates that were approved by the
China State Intellectual Property Administration.
These patents are:
i
ZL98249040.2 — A Urea Granulation Facility with a Rotary Drum
Practical & New Model Patent Certificate
*ii ZL98250394.6 — A Urea Cooling Facility of Rotary Drum
Practical & New Model Patent Certificate
*iii ZL99121906.6 — A Method of Purifying the Air of Urea Powder
Practical & New Model Patent Certificate
*iv ZL99122286.5 — The Technology & Equipments of Combination of
Rotary Drums for Urea Granulation
Invention Patent Certificate
Beijing Daleek Technologies Ltd. owns the exclusive rights of the above
patented technologies.
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