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Expired Canadian patentCanada

Molybdenum sulfide/carbide catalysts

CA 2521944 C · Owner: Chianelli, Russell R. · Inventors: Alonso, Gabriel; Chianelli, Russell R.; Fuentes, Sergio

CIPO record

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Abstract From the Canadian patent

The present invention provides methods of synthesizing molybdenum disulfide (MoS2) and carbon-containing molybdenum disulfide (MoS2-XCX) catalysts that exhibit improved catalytic activity for hydrotreating reactions involving hydrodesulfurization, hydrodenitrogenation and hydrogenation. The present , invention also concerns the resulting catalysts. Furthermore the invention , concerns the promotion of these catalysts with Co Ni, Fe, and/or Ru sulfides , to create catalysts with greater activity for hydrotreating reactions, than , conventional catalysts such as cobalt molybdate on alumina support.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed April 7, 2004 and granted October 2, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 7, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 7, 2004
GrantedOctober 2, 2012
Term endedApril 7, 2024
Patent numberCA 2521944 C
Classification (IPC)B01J23/28 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedApril 7, 2004Patent grantedOct 2, 2012Term endedApril 7, 2024

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.