JC

James J. Cowan

PO Polaroid: 6 patents #125 of 898Top 15%
CH Coho Holdings: 4 patents #1 of 2Top 50%
KA Kavlico: 1 patents #25 of 48Top 55%
PD Polaroid-Corporation-Patent Department: 1 patents #4 of 13Top 35%
📍 Lexington, MA: #338 of 2,299 inventorsTop 15%
🗺 Massachusetts: #7,501 of 88,656 inventorsTop 9%
Overall (All Time): #296,387 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
9864339 Surface relief volume reflective diffractive structure 2018-01-09
9158046 Surface relief volume reflective diffractive structure 2015-10-13
8254029 Surface relief volume reflective diffractive structure 2012-08-28
7460303 Directional diffuser Kenneth A. Haines 2008-12-02
7304775 Actively stabilized, single input beam, interference lithography system and method Douglas S. Hobbs 2007-12-04
7262856 Microstructured optical device for remote chemical sensing Douglas S. Hobbs, Curtis Lockshin, Robert B. Nilsen 2007-08-28
6870624 Optical wavelength resonant device for chemical sensing Douglas S. Hobbs 2005-03-22
6791757 Optical device for filtering and sensing Douglas S. Hobbs 2004-09-14
6707518 Electro-optic device allowing wavelength tuning 2004-03-16
4999234 Holographic optical data storage medium 1991-03-12
4888260 Volume phase reflection holograms and methods for fabricating them 1989-12-19
4874213 Method of forming volume phase reflection holograms 1989-10-17
4839250 Method of replicating volume phase reflection holograms 1989-06-13
4496216 Method and apparatus for exposing photosensitive material 1985-01-29
4469407 Laser apodizing filter Andrew B. Holland 1984-09-04
4402571 Method for producing a surface relief pattern Arthur M. Gerber, Warren D. Slafer 1983-09-06