DW

David E. Welsh

CN Calient Networks: 2 patents #4 of 27Top 15%
📍 Tustin, CA: #9 of 105 inventorsTop 9%
🗺 California: #4,287 of 28,521 inventorsTop 20%
Overall (2003): #70,386 of 273,478Top 30%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6668108 Optical cross-connect switch with integrated optical signal tap Roger Helkey, John E. Bowers, Tony Walter, Kevin S. Yamada 2003-12-23
6643425 Optical switch having switch mirror arrays controlled by scanning beams John E. Bowers, Chandrasekhar Pusarla, Kevin White, Dan Blumenthal, Roger Helkey +1 more 2003-11-04