logo

For the Inventor, By the Inventor

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.:

US 12768768 B1

PDFFull Text
Date of Patent:
Oct. 20, 2026

Filed:

Jan. 09, 2023

High-efficiency optical detection of particles in micro-capillaries

Applicant:

The Regents of the University of California, Oakland, CA (US);

Inventor:

Holger Schmidt, Capitola, CA (US);

Assignee:

The Regents of the University of California, Oakland, CA (US);

Attorneys:

Carter, DeLuca & Farrell LLP

Vadim Vapnyar

Primary Examiner:

Brittany I Fisher

Int. Cl.
CPC ...
G01N 15/1434 (2024.01); G01N 15/00 (2024.01); G01N 15/14 (2024.01); G01N 21/03 (2006.01); G01N 21/05 (2006.01); G01N 21/64 (2006.01); G02B 6/032 (2006.01);
U.S. Cl.
CPC ...
G01N 15/1436 (2013.01); G01N 15/1459 (2013.01); G01N 15/1484 (2013.01); G02B 6/032 (2013.01); G01N 2015/0053 (2013.01); G02B 2006/0325 (2013.01);
Abstract

Disclosed herein are systems, methods, and techniques for optical detection of analytes (e.g., biomarkers or other objects) using a liquid-core waveguide in which the analytes are suspended in a high-index liquid inside a liquid channel of the waveguide. The term 'high-index' may indicate a refractive core index of the carrier liquid that is higher than or equal to that of one or more surrounding cladding layer(s) (e.g., ethylene glycol liquid inside a glass channel). In some embodiments, a method includes illuminating, by a light-source, one or more particles in a liquid-core waveguide, wherein the liquid-core waveguide comprises a first cladding layer having a first index of a refraction, and a hollow core comprising a liquid inside the hollow core, wherein the liquid has a second index of refraction higher than the first index of refraction; and detecting, by a detector, light emitted from the one or more particles.

Find Patent Forward Citations

Quick Actions:

Schmidt, Holger. (2026). High-efficiency optical detection of particles in micro-capillaries (U.S. Patent No. 12768768). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12768768

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…