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Inventor
SONG DAR-YUAN
US
2 patents
⚠️ This page may combine multiple inventors who share the name “SONG DAR-YUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OPTOPLEX CORP
1 patent
US6816315B1
Nov 9, 2004
Optical path length tuner
OPTOPLEX CORP
22 citations
90
(unassigned)
1 patent
US6909549B1
Jun 21, 2005
Tunable filter for optical add/drop module
17 citations
82