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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7585482 | Method and apparatus for producing carbon nanotubes A method of purifying a single-walled carbon nanotube catalytic product having the steps of providing a catalytic product including single-walled carbon nanotubes, and a Group VIII and/or Group VIb transition metal, exposing the catalytic product to a heated oxidati... | 09/08/2009 |
| 7563428 | Method of making carbon nanotubes A method of producing a carbon nanotube product comprising a 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,... | 07/21/2009 |
| 7094386 | Method of producing single-walled carbon nanotubes A method of producing a carbon nanotube product comprising a 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,... | 08/22/2006 |
| 6994907 | Carbon nanotube product comprising single-walled carbon nanotubes 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 leas... | 02/07/2006 |
| 6962892 | Metallic catalytic particle for producing single-walled carbon nanotubes A metallic catalytic particle for producing single-walled carbon nanotubes. The catalytic particles 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 an... | 11/08/2005 |
| 6955800 | Method and apparatus for producing carbon nanotubes A method and apparatus for catalytic production of carbon nanotubes. Catalytic particles are exposed to different process conditions at successive stages wherein the catalytic particles do not come in contact with reactive (catalytic) gases until preferred process c... | 10/18/2005 |
| 6413487 | Method and apparatus for producing carbon nanotubes A method and apparatus for catalytic production of carbon nanotubes. Catalytic particles are exposed to different process conditions at successive stages wherein the catalytic particles do not come in contact with reactive (catalytic) gases until preferre... | 07/02/2002 |
| 6333016 | Method of producing carbon nanotubes A method for producing carbon nanotubes by contacting a carbon containing gas with metallic catalytic particles. The catalytic particles contain at least one metal from Group VIII, including for example Co, Ni, Ru, Rh, Pd, Ir, and Pt, and at least one met... | 12/25/2001 |
