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:
Oct. 13, 2026
Filed:
Apr. 08, 2024
National Technology & Engineering Solutions of Sandia, Llc, Albuquerque, NM (US);
Jessica Whitney Kopatz, Edgewood, NM (US);
Christine Cardinal Roberts, Albuquerque, NM (US);
Koushik Ghosh, Albuquerque, NM (US);
Anthony Michael Mcmaster, Albuquerque, NM (US);
Matthew Kaboolian, Syosset, NY (US);
National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US);
Abstract
A humidity sensor is provided. The humidity sensor comprises a hydrogel made from hydrophilic polymer and carbon nitride dots embedded in the hydrogel. The carbon nitride dots generate a colorimetric response in visible light in response to absorption of moisture by the hydrogel. Conversely, the colorimetric response of the carbon nitride dots reverses in response to loss of moisture in the hydrogel. Changes in humidity can be detected according to the colorimetric response of the carbon nitride dots in the hydrogel.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile