Abatement of no _in exhaust gases
CA 1305308 C · Owner: Kiliany, Thomas Richard Jr. · Inventors: Pappal, David Andrew; Kiliany, Thomas Richard Jr.; Sigal, Catherine Teague
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
F-3585, ABATEMENT OF NOx IN EXHAUST GASES ABSTRACT, Abatement of nitrogen oxides in an industrial exhaust gas is effected by reduction of the nitrogen oxides with ammonia in the presence of a catalyst that contains a crystalline zeolite having a silica to alumina ratio of at least 50 and a Constraint Index of 1 to 12. The catalyst may be virgin catalyst or catalyst previously used for the conversion of a hydrocarbon or for the conversion of methanol to hydrocarbon.
Read the whole patent
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
- Granted July 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.