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. 11, 2024
Filed:
Feb. 18, 2019
Gilson Sas, Villiers-le-Bel, FR;
Universite Clermont Auvergne, Clermont-Ferrand, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Sigma Clermont, Aubiere, FR;
Nicolas Batisse, Perignat les Sarlieve, FR;
Marc Dubois, Clermont-Ferrand, FR;
Jérémy Peyroux, Ussel, FR;
Béatrice Guieu Presle, Deuil-la-Barre, FR;
GILSON SAS, Villiers-le-Bel, FR;
UNIVERSITE CLERMONT AUVERGNE, Clermont-Ferrand, FR;
SIGMA CLERMONT, Aubiere, FR;
CENTRE NATIONAL DE LA RECHERCHE, Paris, FR;
Abstract
A method for fluorinating a filter for a pipette tip, the filter being made of a solid porous structure made of polyolefin. The method comprises the following steps: (a) placing the filter in an enclosure, (b) creating a vacuum in the enclosure, and (c) bringing the filter into contact with a fluorination agent injected into the enclosure in a gaseous state, the fluorination agent being made up of difluorine F, the difluorine Fbeing injected into the enclosure at a partial pressure between 100 Pa and 10000 Pa and step (c) being done at a temperature between 0° C. and 100° C. A pipette tip comprising a filter modified by the fluorination method, a method for producing such a tip, as well as a withdrawing pipette equipped with such a tip.