US Patent Issued to WobbleWorks on April 22 for "Hand-held three-dimensional drawing device" (Chinese, American Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,529, issued on April 22, was assigned to WobbleWorks Inc. (Wilmington, Del.).

"Hand-held three-dimensional drawing device" was invented by Peter Dilworth (Somerville, Mass.) and Maxwell Bogue (Hong Kong, Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "A three-dimensional (3D) drawing pen can include a housing that has a port that permits insertion of a strand of material into the housing. The strand can be moved through the housing toward a nozzle assembly configured to permit the strand to be extruded out of the 3D drawing pen in a form that retains its shape against gravity in free space to draw a 3D object."

The patent was filed on Sept....