Method for operating a combustion plant
CA 2351663 A1 · Owner: Steag Encotec Gmbh · Inventors: Hospital, Andreas; Bruggendick, Hermann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To reduce the quantity of nitrogen oxides resulting from the nitrogen present in fuel, a substoichiometric flame zone is generated and a nitrogen oxide reducing agent introduced into said substoichiometric flame zone. When the oxygen supply is discontinued the reducing agent increases the concentration of radicals which in turn reduce the nitrogen being produced and release molecular oxygen.
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
- Filed October 22, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 2021.
- 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.