Inventor
LIU KAREN
US19 patents
⚠️ This page may combine multiple inventors who share the name “LIU KAREN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
7 patentsUS5953141ASep 14, 1999
Dynamic optical add-drop multiplexers and wavelength-routing networks with improved survivability and minimized spectral filtering
IBM140 citations97
US6208443B1Mar 27, 2001
Dynamic optical add-drop multiplexers and wavelength-routing networks with improved survivability and minimized spectral filtering
IBM79 citations95
US5825949AOct 20, 1998
Optical wavelength division multiplexer for coupling to data sources and sinks, wherein at least two data sources and sinks operate with different communication protocols
IBM94 citations94
US5745612AApr 28, 1998
Wavelength sorter and its application to planarized dynamic wavelength routing
IBM79 citations94
US5487120AJan 23, 1996
Optical wavelength division multiplexer for high speed, protocol-independent serial data sources
IBM57 citations93
US5357363AOct 18, 1994
Interconnections having improved signal-to-noise ratio
IBM26 citations92
US5039201AAug 13, 1991
Double-pass tunable fabry-perot optical filter
IBM19 citations82
UNIV LELAND STANFORD JUNIOR
3 patentsUS4938556AJul 3, 1990
Superfluorescent broadband fiber laser source
UNIV LELAND STANFORD JUNIOR89 citations96
US4964131AOct 16, 1990
Broadband optical fiber laser
UNIV LELAND STANFORD JUNIOR52 citations92
US4721352AJan 26, 1988
Polarizing apparatus and method utilizing an optical fiber
UNIV LELAND STANFORD JUNIOR50 citations92
PURDUE RESEARCH FOUNDATION
3 patentsUS9962401B2May 8, 2018
Chitosan derivatives for inactivation of endotoxins and surface protection of nanoparticles
PURDUE RESEARCH FOUNDATION0 citations49
US9517246B2Dec 13, 2016
Chitosan derivatives for inactivation of endotoxins and surface protection of nanoparticles
PURDUE RESEARCH FOUNDATION0 citations49
US9393262B2Jul 19, 2016
Chitosan derivatives for inactivation of endotoxins and surface protection of nanoparticles
PURDUE RESEARCH FOUNDATION1 citations49