Radiation imagery chemistry: process – composition – or product th – Radiation modifying product or process of making – Radiation mask
Reexamination Certificate
2011-08-30
2011-08-30
McPherson, John A. (Department: 1721)
Radiation imagery chemistry: process, composition, or product th
Radiation modifying product or process of making
Radiation mask
C430S321000
Reexamination Certificate
active
08007965
ABSTRACT:
The invention provides an optical mux/demux for an optical printed circuit board. The mux/demux comprises: a first waveguide formed on a support layer for carrying a wavelength division multiplexed optical signal; a separator/combiner for separating the wavelength division multiplexed signal into component signals of corresponding wavelengths or for combining component signals into the said wavelength division multiplexed signal; and plural second waveguides, each for receiving or providing one or more of the said component signals, wherein the separator/combiner is at a predetermined location relative to the waveguides.
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Standard Search Report as issued for U.S. Appl. No. 60/847,403, dated Jul. 9, 2007.
Papakonstantinou Ioannis
Pitwon Richard Charles Alexander
Selviah David R.
McPherson John A.
Pillsbury Winthrop Shaw & Pittman LLP
Xyratex Technology Limited
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