Jay N. Damask has been granted 10 US patents while listed as an inventor at AT&T . The first was granted in 1999 and the most recent in August 2005. Jay N. Damask ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Jay N. Damask in Cambridge, MA, US.
Patents per Year Patents granted per year, 1999 to 2005 Bar chart with a peak of 4 patents in 2005. peak 4 1999: 1 patents 1999 2001: 1 patents 2001 2002: 2 patents 2002 2003: 2 patents 2003 2005: 4 patents 2005
Issued Patents All Time
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Showing 1–10 of 10 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
6934083 Methods and apparatus for generation and control of coherent polarization mode dispersion — 2005-08-23
6891674 Methods and apparatus for frequency shifting polarization mode dispersion spectra — 2005-05-10
6867918 Methods and apparatus for generation and control of coherent polarization mode dispersion — 2005-03-15
6847484 Methods and apparatus for generating polarization mode dispersion Shih-Cheng Wang 2005-01-25
6671094 Composite birefringent crystal and filter — 2003-12-30
$15,839,000
6577445 Composite birefringent crystal and filter — 2003-06-10
$17,106,000
6393039 Double-pass polarization diversified birefringent filter Christopher Doerr 2002-05-21
$13,230,000
6377719 Apparatus and method for controlled generation of polarization mode dispersion — 2002-04-23
$10,373,000
6252711 Polarization diversity for birefingent filters Christopher Doerr 2001-06-26
$16,380,000
5915051 Wavelength-selective optical add/drop switch Thomas E. Murphy, Jr. , Juan Ferrera , Michael H. Lim , Henry I. Smith , Hermann A. Haus 1999-06-22
