YS

Y. Calvin Si

JF Jds Fitel: 3 patents #12 of 53Top 25%
📍 Ottawa, CA: #2,023 of 6,399 inventorsTop 35%
Overall (All Time): #1,640,760 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5808763 Optical demultiplexor Gary S. Duck, Neil Teitelbaum 1998-09-15
5612824 Narrow band filter and method of making same Gary S. Duck, Joseph Ip, Neil Teitelbaum 1997-03-18
5539577 Means to lessen unwanted reflections in an optical device Gary S. Duck, Yihao Cheng 1996-07-23