US Patent 7662873 - Nanobarcode for textiles
http://www.freepatentsonline.com/7662873.html
This patent from Nano-Tex has a relatively early priority date (Feb.22,2003) and includes some basic claims to using metallic nanoparticles as a type of barcode for tracking textiles, paper, or other fibrous materials. Claim 4 reads:
4. A treatment preparation for introducing nanoscopic bar codes to a fibrous substrate, the treatment preparation comprising nanoscopic nanobar code particles, a fluorescent dye or fluorophore, a particles binder, and water.
Some prior art not cited but which may have some relevance to the claims include:
US Patent 6617583- "A novel encoding system and methods for determining the location and/or identity of a particular item or component of interest is provided. In particular, the present invention utilizes a "barcode" comprising one or more sizes of semiconductor nanocrystals (quantum dots) having characteristic spectral emissions, to either "track" the location of a particular item of interest or to identify a particular item of interest. " (from abstract)
US Patent 6633370-"Quantum dots, semiconductor nanocrystals and semiconductor particles used as fluorescent coding elements" (title)
This patent from Nano-Tex has a relatively early priority date (Feb.22,2003) and includes some basic claims to using metallic nanoparticles as a type of barcode for tracking textiles, paper, or other fibrous materials. Claim 4 reads:
4. A treatment preparation for introducing nanoscopic bar codes to a fibrous substrate, the treatment preparation comprising nanoscopic nanobar code particles, a fluorescent dye or fluorophore, a particles binder, and water.
Some prior art not cited but which may have some relevance to the claims include:
US Patent 6617583- "A novel encoding system and methods for determining the location and/or identity of a particular item or component of interest is provided. In particular, the present invention utilizes a "barcode" comprising one or more sizes of semiconductor nanocrystals (quantum dots) having characteristic spectral emissions, to either "track" the location of a particular item of interest or to identify a particular item of interest. " (from abstract)
US Patent 6633370-"Quantum dots, semiconductor nanocrystals and semiconductor particles used as fluorescent coding elements" (title)
Labels: Nano-Tex
posted by blaisemouttet at 10:51 PM
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