Chuck Hull (Charles W. Hull; born May 12, 1939) is the co-founder, executive vice president and chief technology officer of 3D Systems.[1][2] He is one of the inventors of the SLA 3D printer, the first commercial rapid prototyping technology, and the widely used STL file format. He is named on more than 60 U.S. patents as well as other patents around the world in the fields of ion optics and rapid prototyping. He was inducted into the National Inventors Hall of Fame in 2014[3] and in 2017 was one of the first inductees into the TCT Hall of Fame.

Has served as Chief Technology Officer since 1997 and as Executive Vice President since 2000. He has also previously served in various other of our executive capacities, including Chief Executive Officer, Vice Chairman of the Board of Directors and President and Chief Operating Officer.