Inventor
LI YIQIANG
US14 patents
⚠️ This page may combine multiple inventors who share the name “LI YIQIANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AC PHOTONICS INC
6 patentsUS6522467B1Feb 18, 2003
Polarization insensitive liquid crystal tunable filter
AC PHOTONICS INC25 citations91
US6701040B2Mar 2, 2004
Dense wavelength division multiplexer configuration
AC PHOTONICS INC15 citations82
US6690501B2Feb 10, 2004
Low cost isolator/polarization beam combiner hybrid component
AC PHOTONICS INC15 citations82
US6876491B2Apr 5, 2005
Highly integrated hybrid component for high power optical amplifier application
AC PHOTONICS INC8 citations72
US6707960B2Mar 16, 2004
Reflection type compact optical switch
AC PHOTONICS INC7 citations72
US6782145B2Aug 24, 2004
Method and system for providing a simplified in-line optical circulator
AC PHOTONICS INC3 citations61
OPTICAL COATING LABORATORY INC
2 patentsOPLINK COMMUNICATIONS INC
2 patentsUNIV CHINA PETROLEUM BEIJING
2 patentsUS11136265B1Oct 5, 2021
Artificial sandstone and/or conglomerate core based on lithology and permeability control and preparation method and application thereof
UNIV CHINA PETROLEUM BEIJING11 citations78
US11192824B1Dec 7, 2021
Artificial sandstone and/or conglomerate core based on lithology and pore structure control and preparation method and application thereof
UNIV CHINA PETROLEUM BEIJING0 citations48