David E. Welsh

CN Calient Networks: 1 patents #4 of 13Top 35%

📍 Tustin, CA: #26 of 100 inventorsTop 30%

🗺 California: #7,981 of 26,868 inventorsTop 30%

Overall (2005): #213,487 of 245,428Top 90%

Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6950215	Method and apparatus for monitoring optical switches	Walt Joseph Fant, Roger Helkey, Tony Walter, Peter Hunt	2005-09-27