HOUSTON--(BUSINESS WIRE)--Changing Technologies, Inc. (OTCBB:CHGT) announced plans today to potentially expand its emerging online 3D printing portal to include copyright and patent services. The service aims to allow users for the first time to immediately copyright and patent their intellectual property and inventions, including designs, patterns, or names for 3D printing projects. CHGT commissioned the new portal to broaden access to 3D printing and develop a community of like-minded users i
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