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Corrado Dragone

AT AT&T: 52 patents #219 of 18,772Top 2%
BL Bell Telephone Laboratories: 6 patents #48 of 1,445Top 4%
AG Agere Systems Guardian: 2 patents #139 of 810Top 20%
AT American Telephone And Telegraph: 2 patents #45 of 699Top 7%
AI At & T Ipm: 1 patents #18 of 189Top 10%
BL Bell Laboratories: 1 patents #12 of 16Top 75%
Overall (All Time): #29,543 of 4,157,543Top 1%
70
Patents All Time

Issued Patents All Time

Showing 25 most recent of 70 patents

Patent #TitleCo-InventorsDate
8594473 Optical router with stationary response and increased number of channels 2013-11-26
8326101 Optical router with nearly ideal performance and increased number of channels 2012-12-04
8204346 Optical router with nearly ideal performance 2012-06-19
7702200 Waveguide grating optical router suitable for CWDM 2010-04-20
7283700 Optical router using stationary imaging 2007-10-16
7068888 Efficient waveguide arrays with optimized matching transitions 2006-06-27
6907160 Apparatus for filtering optical signals 2005-06-14
6873766 Efficient waveguide arrays with nearly perfect element patterns 2005-03-29
6859574 N×N switching arrangement of two planar arrays without waveguide crossings Christopher Doerr 2005-02-22
6823096 Broadband optical switching arrangements with very low crosstalk 2004-11-23
6782163 Waveguide grating arrangement using a segmented reflector 2004-08-24
6754410 Integrated wavelength-selective cross connect Christopher Doerr 2004-06-22
6594054 Filtering system for eliminating dispersion and method for doing same 2003-07-15
6574396 Waveguide grating arrangement using a segmented reflector 2003-06-03
6549698 Large N×N waveguide grating router Pietro Bernasconi, Christopher Doerr 2003-04-15
6549313 Broadbrand electronic N×N cross-connect switch using tunable lasers Christopher Doerr, Alastair M. Glass, Ivan P. Kaminow 2003-04-15
6542655 N×N crossconnect switch using wavelength routers and space switches 2003-04-01
6463197 Coupling of optical signals to misaligned waveguides on different wafers 2002-10-08
6456752 Large N×N optical switch using binary trees 2002-09-24
6396977 Wavelength router with a wide passband realized using two gratings of opposite angular dispersions 2002-05-28
6385373 Compensated cascaded waveguides Christopher Doerr 2002-05-07
6381383 Large N×N waveguide grating router Pietro Bernasconi, Christopher Doerr 2002-04-30
6359912 Multiple wavelength laser having a reduced number of wavelength controls Christopher Doerr, Alastair M. Glass 2002-03-19
6263127 Free-space/arrayed-waveguide router Joseph E. Ford 2001-07-17
6259833 Optical cross connect using a planar arrangement of beam steerers Christopher Doerr 2001-07-10