Patent 6994907 Issued on February 7, 2006. Estimated Expiration Date: April 25, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
428/367, Including free carbon or carbide or therewith (not as steel)204/173, Carbon502/174, Inorganic carbon containing423/461, Recovery or purification502/180, Elemental carbon423/210, MODIFYING OR REMOVING COMPONENT OF NORMALLY GASEOUS MIXTURE502/416, Free carbon containing428/364, Rod, strand, filament or fiber427/216, Metal base423/344, Binary compound (e.g., silicide, etc.)428/408, SELF-SUSTAINING CARBON MASS OR LAYER WITH IMPREGNANT OR OTHER LAYER423/249, RADIOACTIVE (AT. NO. 84+ OR RADIOACTIVE ISOTOPE OF ANOTHER ELEMENT)423/447.3From gaseous reactants
A carbon nanotube product formed from a metallic catalytic particle and single-walled carbon nanotubes deposited thereon. The catalytic particles preferably contain at least one metal from Group VIII, including for example Co, Ni, Ru, Rh, Pd, Ir, and Pt, and at least one metal from Group VIb including for example Mo, W and Cr. The metallic catalytic particle preferably further comprises a support material such as silica. The carbon nanotube product is preferably formed by exposing the metallic catalytic particle to a carbon-containing gas at a temperature sufficient to form the single-walled nanotubes as a primary portion of a solid carbon product on the metallic catalytic particles.
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April 25, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
