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Veenstra

Robert Veenstra, Mississauga CA

Patent application numberDescriptionPublished
20120280437Slit Lance Burner For Flash Smelter - A burner for a flash smelting furnace. The burner includes an injector having a sleeve for delivering pulverous feed material to the furnace and having a central lance within the sleeve to supply compressed air for dispersing the pulverous feed material in the reaction shaft of the furnace. The central lance has an annular slot at its tip for creating a substantially continuous air curtain.11-08-2012
20120280438Burner and Feed Apparatus For Flash Smelter - A burner for a flash smelting furnace. The burner includes a distributor for receiving pulverous feed material from a plurality of feed pipes. The distributor has at least one curved deflector that directs the feed stream in an evenly distributed annulus into the sleeve of the burner.11-08-2012
20120280439Burner With Velocity Adjustment For Flash Smelter - A burner for a flash smelting furnace. The burner has an adjustable nozzle to control the velocity of the combustion gas supply to the reaction shaft. The nozzle is defined by the burner injector and a surrounding structure that extends from the burner wind box through an opening in the burner block that integrates the burner with the furnace. The nozzle is adjusted by control means that is exterior of the wind box.11-08-2012

Siem Jacob Veenstra, Lörrach DE

Patent application numberDescriptionPublished
20100056490Cyclic sulfones with aminobenzyl substitution useful as BACE inhibitors - The invention relates to novel heterocyclic compounds of the formula03-04-2010

Siem Jacob Veenstra, Loerrach DE

Patent application numberDescriptionPublished
20120184539Novel Heterocyclic Derivatives and Their Use in the Treatment of Neurological Disorders - The invention relates to novel heterocyclic compounds of the formula07-19-2012
20120277244PYRAZINE DERIVATIVES AND THEIR USE IN THE TREATMENT OF NEUROLOGICAL DISORDERS - The invention relates to novel heterocyclic compounds of the formula (I) in which all of the variables are as defined in the specification, in free form or in salt form, to their preparation, to their medical use and to medicaments comprising them.11-01-2012

Siem Jacob Veenstra, Basel CH

Patent application numberDescriptionPublished
20120302558OXAZINE DERIVATIVES AND THEIR USE IN THE TREATMENT OF NEUROLOGICAL DISORDERS - The invention relates to novel heterocyclic compounds of the formula11-29-2012