Patents by Inventor Per-Arne Dahlqvist

Per-Arne Dahlqvist has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of preparing iron(III) phosphate compounds for iron fortification of food products
    Patent number: 4931292
    Abstract: Use of a certain type of complex iron(III)phosphate compounds for iron fortification of food products, in particular grain products. Especially flour and flour products, breakfast cereals, milk-based beverages, broths, rice and fermented food products, such as bread, are here concerned. The iron (III)phosphate compounds used have general formula Z. [FeM.sub.3y-3 (PO.sub.4).sub.y ]. XH.sub.2 O, wherein M is one of the ions H.sup.+, Na.sup.+, K.sup.+, NH.sub.4.sup.+ or a combination thereof, 1.5.ltoreq.y.ltoreq.3.0, X .gtoreq.O and Z is an integer from 1 and upwards, Z . y being an integer. A preferred embodiment is the use oy being an integer. A preferred embodiment is the use of a compound having the formula Fe.sub.3 H.sub.8 (NH.sub.4)(PO.sub.4).sub.6.6H.sub.2 O. The invention also relates to a method preparing iron-fortified food products and further to the iron-fortified food products.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: June 5, 1990
    Assignee: EKA Nobel AB
    Inventors: Lars-Gunnar Torstensson, Per-Arne Dahlqvist, Malika Benjelloun