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:
Feb. 10, 2026
Filed:
Dec. 18, 2020
Roche Diagnostics Hematology, Inc., Indianapolis, IN (US);
Roche Diagnostics Operations, Inc., Indianapolis, IN (US);
Anne Umberger, Wellesley, MA (US);
Kerri Elizabeth Horton, Arlington, MA (US);
Daniel Lapen, Lancaster, MA (US);
David J. Zahniser, Wellesley, MA (US);
Mirko Klingauf, Rotkreuz, CH;
Roche Diagnostics Hematology, Inc., Indianapolis, IN (US);
Roche Diagnostics Operations, Inc., Indianapolis, IN (US);
Abstract
The disclosure features calibration fluids that include a plurality of beads, such as cellulose, silica, poly(methyl-methacrylate) (PMMA), melamine, cross-linked agarose, polyvinylacetate (PVA), and/or polystyrene beads, where the beads are sized and colored to represent at least one type of blood cell; and a carrier fluid, that can include a polymer or polymerizing matrix, e.g., a water-soluble resin, e.g., an acrylic or polyurethane water-soluble resin or a starch or a cellulose, serum, and/or one or more or sugars. The disclosure also features methods of using the calibration fluids to calibrate automated sample preparation systems, such as automated hematology analyzer systems, e.g., image-based hematology analyzer systems.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile