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. 17, 2025
Filed:
Oct. 20, 2022
Applicant:
Zoho Corporation Private Limited, Kanchipuram District, IN;
Inventors:
Sujatha S Iyer, Guduvanchery, IN;
Balachandar S, Guduvanchery, IN;
Ramprakash Ramamoorthy, Singaperumal Koil, IN;
Shailesh Kumar Davey, Potheri, IN;
Assignee:
Zoho Corporation Private Limited, Kanchipuram District, IN;
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/16 (2013.01); G06T 3/40 (2024.01); G06V 30/14 (2022.01); G06V 30/19 (2022.01); G06F 21/10 (2013.01);
U.S. Cl.
CPC ...
G06F 21/16 (2013.01); G06T 3/40 (2013.01); G06V 30/1448 (2022.01); G06V 30/19 (2022.01); G06F 21/1063 (2023.08);
Abstract
Described are methods and system that digitally watermark documents using an encoding scheme that embeds unique identifiers into the files by perturbing the relative heights of words to create patterns that are imperceptible to the human eye but decodable to recover the identifiers. The unique identifiers can be precoded before they are embedded in the documents.