Green Project Awarded U.S. Patent on “GP” Gear for Canon and HP Drums

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On March 5, Green Project announced that the U.S. Patent and Trademark Office (USPTO) has issued a patent on its “GP” gear technology for replacement OPC drums and the all-in-one toner cartridges containing them.Green Project announced its GP gear last fall (see “Green Project Announces GP Gear Design for Canon and HP Toner Cartridges”), following

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