Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11954931 | Methods and systems for detecting tampering of an IR security mark | Rajasekar Kanagasabai, Vignesh Doss, Sainarayanan Gopalakrishnan | 2024-04-09 |
| 11941937 | Methods and systems for automatically identifying IR security marks based on known halftone frequency and color information | Sainarayanan Gopalakrishnan, Rajasekar Kanagasabai | 2024-03-26 |
| 11765300 | Methods and systems for identifying blank spaces in documents for embedding IR marks | Packiya Lakshmi Balusamy, Ravindranath Mannuru | 2023-09-19 |
| 11652941 | Methods and systems for securing confidential content of a document while printing and/or generating a copy of the document | Sainarayanan Gopalakrishnan, Rajasekar Kanagasabai, Anand Arokia Raj Antony Muthu Rayar | 2023-05-16 |
| 11509791 | Methods and systems for automatically identifying IR security marks in a document based on halftone frequency information | Sainarayanan Gopalakrishnan, Rajasekar Kanagasabai | 2022-11-22 |