The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 2017
Filed:
Feb. 02, 2012
Hanne Marika Lindroos, Turku, FI;
Outi Maria Lehtinen, Rusko, FI;
Pekka Tapani Mattsson, Turku, FI;
Elina Maaret Tuomola, Littoinen, FI;
Hanne Marika Lindroos, Turku, FI;
Outi Maria Lehtinen, Rusko, FI;
Pekka Tapani Mattsson, Turku, FI;
Elina Maaret Tuomola, Littoinen, FI;
WALLAC OY, Turku, FI;
Abstract
A method for diminishing variation between and/or within individual sheets of filter papers which are suitable for collecting samples of biological material, e.g. blood, is described. The method includes at least one of the following: subjecting the sheets of filter paper to gaseous substance containing at least 30 grams water per cubic meter and/or wetting the sheets of filter paper with water and subsequently drying the sheets of filter paper. According to tests, the above-described treatment significantly reduces the undesirable variation between results analyzed from sheets of filter paper and impregnated with same biological material for test purposes.