3867507
3873671
3900554
Method for reducing NOx emission to the atmosphere
Patent #: 4115515
Issued on: 09/19/1978
Inventor: Tenner , et al.
Urea reduction of NOx in combustion effluents
Patent #: 4208386
Issued on: 06/17/1980
Inventor: Arand , et al.
Process for controlling nitrogen oxides in exhaust gases and apparatus therefor
Patent #: 4302431
Issued on: 11/24/1981
Inventor: Atsukawa , et al.
Apparatus for preheating combustion air, accompanied by simultaneous reduction of NOx contained in the flue gases
Patent #: 4602673
Issued on: 07/29/1986
Inventor: Michelfelder , et al.
Apparatus for catalytic cleaning of exhaust gases from a furnace system
Patent #: 4678643
Issued on: 07/07/1987
Inventor: Fetzer
Reduction of nitrogen-based pollutants through the use of urea solutions containing oxygenated hydrocarbon solvents
Patent #: 4719092
Issued on: 01/12/1988
Inventor: Bowers
Process for the selective catalytic removal of nitrogen oxides from the waste gases of furnaces
Patent #: 4719094
Issued on: 01/12/1988
Inventor: Rieckert , et al.
More ...
NO reduction using sublimation of cyanuric acid
Patent #: 4731231
Issued on: 03/15/1988
Inventor: Perry
Reduction of nitrogen- and carbon-based pollutants
Patent #: 4751065
Issued on: 06/14/1988
Inventor: Bowers
Process for the reduction of nitrogen oxides in an effluent
Patent #: 4770863
Issued on: 09/13/1988
Inventor: Epperly , et al.
Multi-stage process for reducing the concentration of pollutants in an effluent
Patent #: 4777024
Issued on: 10/11/1988
Inventor: Epperly , et al.
Process for nitrogen oxides reduction and minimization of the production of other pollutants
Patent #: 4780289
Issued on: 10/25/1988
Inventor: Epperly , et al.
System for NO reduction using sublimation of cyanuric acid
Patent #: 4800068
Issued on: 01/24/1989
Inventor: Perry
Process for the reduction of nitrogen oxides in an effluent using a hydroxy amino hydrocarbon
Patent #: 4803059
Issued on: 02/07/1989
Inventor: Sullivan , et al.
Ammonia scrubbing
Patent #: 4830839
Issued on: 05/16/1989
Inventor: Epperly , et al.
Process for the reduction of nitrogen oxides in an effluent
Patent #: 4844878
Issued on: 07/04/1989
Inventor: Epperly , et al.
Methods of removing NOx and SOx emissions from combustion systems using nitrogenous compounds
Patent #: 4851201
Issued on: 07/25/1989
Inventor: Heap , et al.
Methods of reducing NOx and SOx emissions from combustion systems
Patent #: 4861567
Issued on: 08/29/1989
Inventor: Heap , et al.
Multi-stage process for reducing the concentration of pollutants in an effluent using an ammonium salt
Patent #: 4863704
Issued on: 09/05/1989
Inventor: Epperly , et al.
Process for the reduction of nitrogen oxides in an effluent
Patent #: 4863705
Issued on: 09/05/1989
Inventor: Epperly , et al.
Method for the selective elimination of nitrogen oxides from exhaust gases
Patent #: 4867953
Issued on: 09/19/1989
Inventor: Riekert , et al.
Low temperature process for the reduction of nitrgen oxides in an effluent
Patent #: 4873066
Issued on: 10/10/1989
Inventor: Epperly, et al.
Process for nitrogen oxides reduction with minimization of the production of other pollutants
Patent #: 4877590
Issued on: 10/31/1989
Inventor: Epperly, et al.
Process for the reduction of nitrogen oxides in an effluent using sugar
Patent #: 4877591
Issued on: 10/31/1989
Inventor: Epperly, et al.
No reduction using sublimation of cyanuric acid
Patent #: 4886650
Issued on: 12/12/1989
Inventor: Perry
Process for the reduction of nitrogen oxides in an effluent using a heterocyclic hydrocarbon
Patent #: 4888165
Issued on: 12/19/1989
Inventor: Epperly, et al.
Process for nitrogen oxides reduction with minimization of the production of other pollutants
Patent #: 4902488
Issued on: 02/20/1990
Inventor: Epperly, et al.
No reduction using sublimation of cyanuric acid
Patent #: 4908193
Issued on: 03/13/1990
Inventor:
Reduction of nitrogen- and carbon-based pollutants
Patent #: 4927612
Issued on: 05/22/1990
Inventor: Bowers
Combined catalytic/non-catalytic process for nitrogen oxides reduction
Patent #: 4978514
Issued on: 12/18/1990
Inventor: Hofmann, et al.
Process and injector for reducing the concentration of pollutants in an effluent
Patent #: 4985218
Issued on: 01/15/1991
Inventor: DeVita
Process for reducing nitrogen oxides without generating nitrous oxide
Patent #: 4997631
Issued on: 03/05/1991
Inventor: Hofmann, et al.
Process for nitrogen oxides reduction and minimization of the production of other pollutants
Patent #: 5017347
Issued on: 05/21/1991
Inventor: Epperly, et al.
Hybrid process for nitrogen oxides reduction
Patent #: 5047219
Issued on: 09/10/1991
Inventor: Epperly, et al.
Process and apparatus for the thermal decomposition of nitrous oxide
Patent #: 5048432
Issued on: 09/17/1991
Inventor: Hofmann, et al.
Multi-stage process for reducing the concentration of pollutants in an effluent
Patent #: 5057293
Issued on: 10/15/1991
Inventor: Epperly, et al.
Apparatus and method of lowering NOx emissions using diffusion processes
Patent #: 5078064
Issued on: 01/07/1992
Inventor: Breen, et al.
Catalytic/non-catalytic combination process for nitrogen oxides reduction
Patent #: 5139754
Issued on: 08/18/1992
Inventor: Luftglass, et al.
Advanced reburning for reduction of NOx emissions in combustion systems
Patent #: 5139755
Issued on: 08/18/1992
Inventor: Seeker, et al.
Highly efficient hybrid process for nitrogen oxides reduction
Patent #: 5286467
Issued on: 02/15/1994
Inventor: Sun, et al.
Integrated catalytic/non-catalytic process for selective reduction of nitrogen oxides
Patent #: 5510092
Issued on: 04/23/1996
Inventor: Mansour, et al.
Flameless combustor Patent #: 5899269
Issued on: 05/04/1999
Inventor: Wellington, et al.
November 1, 2016. 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.
