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Inventor

GUO QING DONG

US4 patents
⚠️ This page may combine multiple inventors who share the name “GUO QING DONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

U S A KAIFA TECHNOLOGY INC

3 patents
US5930039AJul 27, 1999

Optical circulator

U S A KAIFA TECHNOLOGY INC60 citations93
US5909310AJun 1, 1999

Optical circulator

U S A KAIFA TECHNOLOGY INC51 citations90
US6331912B1Dec 18, 2001

Optical circulator

U S A KAIFA TECHNOLOGY INC17 citations86

JDS UNIPHASE INC

1 patent
US6587267B2Jul 1, 2003

Beam directing device

JDS UNIPHASE INC13 citations83