Granted Patent
Utility
US 4,893,886 · App. 07/098,120
Non-destructive optical trap for biological particles and method of doing same
Inventors:
Arthur Ashkin, Joseph M. Dziedzic
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: Sep 17, 1987
Inventors
Arthur Ashkin
Joseph M. Dziedzic
Assignees (at issue)
American Telephone and Telegraph, Co.
AT&T Bell Laboratories
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.