IP Library › Granted Patent US 6,426,840
Granted Patent Utility
US 6,426,840 · App. 09/791,346

Electronic spot light control

Inventors: Jouni P. Partanen, Nansheng Tang, Xingkun Wu
Patented Case View Patent ↗
Granted: Jul 30, 2002 Filed: Feb 23, 2001
Inventors
Jouni P. Partanen
Nansheng Tang
Xingkun Wu
Assignee (at issue)
3D Systems, Inc.

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Quick Facts
Patent No.
US 6,426,840
App. No.
09/791,346
Filed
2001-02-23
Granted
2002-07-30
Kind
B1