http://www.freshpatents.com/Compositions--ceramic-dtnewntc501.php USPTO Class 501 - Compositions: ceramic en-us Tue, 18 Aug 2009 22:46:14 -0700 1000 Wednesday Thursday Friday Saturday Sunday 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif http://www.freshpatents.com/Synthetic-silica-glass-optical-material-having-high-resistance-to-laser-induced-damage-dt20090813ptan20090203511.php Tue, 18 Aug 2009 22:46:14 -0700 Disclosed is a synthetic silica glass optical material having high resistance to optical damage by ultraviolet radiation in the ultraviolet wavelength range, particularly in the wavelength less than about 250 nm and particularly, exhibiting a low laser induced wavefront distortion; specifically a laser induced wavefront distortion, measured at 633 nm,... http://www.freshpatents.com/Halide-free-glasses-having-low-oh-od-concentrations-dt20090813ptan20090203512.php Tue, 18 Aug 2009 22:46:14 -0700 A fused silica glass having a refractive index homogeneity of less or equal to about 5 ppm over an aperture area of at least about 50 cm2. The fused silica glass is also substantially free of halogens and has an adsorption edge of less than about 160 nm. The glass... http://www.freshpatents.com/Glass-member-for-optical-parts-and-glass-composition-used-therefor-dt20090813ptan20090203513.php Tue, 18 Aug 2009 22:46:14 -0700 There is provided a glass member for optical parts that represents a greater absolute value |Δn| of refractive index difference Δn of visual light between base glass and heterogeneous phase region. In the glass member for optical parts, the heterogeneous phase region distinguishable by a different refractive index is formed... http://www.freshpatents.com/Method-for-producing-an-oil-binding-agent-and-oil-binding-dt20090813ptan20090203514.php Tue, 18 Aug 2009 22:46:14 -0700 The invention relates to a method for producing an oil-binding agent of granular open-porous structure with a silicate ceramic matrix by using recovered paper material and clay. The method is characterized in that, in each case based on the entire raw material, 35 to 60 wt.-% sewage sludge with a...