Granted Patent
Utility
US 6,506,970 · App. 10/006,475
Power-generating roof tile with photovoltaic module
Inventor:
Takeharu Yamawaki
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Dec 5, 2001
Inventor
Takeharu Yamawaki
Assignee (at issue)
KANEKA CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.