Granted Patent
Utility
US 6,049,430 · App. 09/191,259
High numerical aperture objective lens manufacturable in wafer form
Inventors:
John Heanue, Mark Wardas
Patented Case
View Patent ↗
Granted: Apr 11, 2000
Filed: Nov 12, 1998
Inventors
John Heanue
Mark Wardas
Assignee (at issue)
Seagate Technology 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.