Resources Contact Us Home
Nelson; Clara E.
Allegheny County, PA
No. of patents:

Patent Number Title Of Patent Date Issued
7320826 Photochromic articles with reduced temperature dependency and methods for preparation January 22, 2008
Described are photochromic articles that include a substrate, a temperature dependent reducing amount of at least one organic photochromic material (b) that changes from more absorbing to less absorbing of radiation in its activating spectral absorbance as the temperature increases f
7166357 Photochromic articles that activate behind ultraviolet radiation blocking transparencies and met January 23, 2007
Described are photochromic articles that include a substrate and a photochromic amount of at least one organic photochromic material (b) represented by graphic formula XIII adapted to change from an unactivated state to an activated state by exposure to radiation substantially in a w

  Recently Added Patents
Knife grip
Method for manufacturing light emitting diodes
Dual source mass spectrometry system
Organic electroluminescent element
Wafer level packaging structure with large contact area and preparation method thereof
System and method for creating a build set and bill of materials from a master source model
Surface modification
  Randomly Featured Patents
Power lead for electrically connecting a superconducting coil to a power supply
Microscope objective lens system
Device for displacing the color-change carriage on multiple-head embroidery machines
Card carrier
P-handle extraction tool
Enhanced oil recovery process and apparatus
Method and compositions for fracturing subterranean formations
Split cable seal
Method of treating infectious diseases with granulocyte colony-stimulating factor
Play yards and methods of operating the same