Case Filed: Dec 17, 2012
Case Closed: Dec 02, 2013
Court: California Northern District Court
Judge: Jon S. Tigar
A patent infringement suit was filed by Fuzzysharp against NVIDIA alleging that they had unauthorizedly used their patents covering computer graphics. The patents in suit are: US6172679 and US6618047 both entitled ‘Visibility calculations for 3D computer graphics’ issued on Jan 09, 2001 and expired[i] on Jun 28, 2011. The patents were last assigned[ii] to Fuzzysharp (source: MaxVal’s Assignment Database).
The patented technology describes a method for efficient determination of visible and/or invisible surfaces to thereby preferably permit improved hidden surface removal in 3D systems. The complaint does not specify any products, but however, points out that the defendant markets graphic processors units (GPU) capable of performing occlusion culling during the computer graphics rendering process that infringes the methods claimed in ‘679 and ‘047 patents and that the Nvidia’s actions have been willful.
Fuzzysharp filed an amended complaint on May 14, 2013 and the Court dismissed Fuzzysharp’s claims of the ’047 patent with prejudice after considering NVIDIA’s motion to dismiss (in part) the amended complaint leaving the claims of ‘679 patent. Later, the parties filed a stipulated motion to dismiss Fuzzysharp’s remaining claim in this case. Upon consideration, the Court granted the order, thereby ending the patent litigation.
See 3:12-cv-06375 for more details. To get alerts on cases filed/closed, subscribe to our Litigation Alerts.
[i] Expected expiration date. Patent Term Estimator is a free web-based tool that automatically calculates patent
terms and expiration dates for U.S. utility patents.
[ii] MaxVal offers Patent Assignment Alert service where subscribers receive email alerts when assignments relating to target applications, patents or entities of interest are recorded.