Granted Patent
Utility
US 6,825,620 · App. 10/246,155
Inductively coupled ballast circuit
Inventors:
Roy W. Kuennen, Scott A. Mollema, David W. Baarman, Ronald C. Markham, Dennis J. Denen
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: Sep 18, 2002
Inventors
Roy W. Kuennen
Scott A. Mollema
David W. Baarman
Ronald C. Markham
Dennis J. Denen
Assignee (at issue)
Access Business Group International LLC
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.